Coolbot heater light flashing

The flashing defroster light is indeed the hvac calibrating the vent blend door. The reason it has to calibrate each time the car is started is the actuator for the blend door is malfunctioning and gives bad data back to the hvac controls, therefore causing the controls to recalibrate the door on each start up.

CoolBots are not compatible with central, RV, or roof-mount-typed ACs. It is also incompatible with PTACs. Many portable AC units can’t connect to CoolBots, unless the portable AC is a dual hose unit, can adjust to the temperature range of 11.67-15.56 degrees Celcius, and from the Whynter brand. As well as the very occasional flashing glow plug warning like that was fixed with a switch-off/switch-on, just recently, maybe about a month or so, when starting the car it would tick over slower than normal for about 7 seconds, then it was as if it realised what was going on and then speed up and settle at the normal tick over speed.suntreemcanic Discussion starter. 11 posts · Joined 2018. #1 · Nov 18, 2022. My 2018 GMC Sierra has almost 50K mles. It has been problem free till now. My heater has separate controls for driver and passenger. All controls work perfect. Some of the lights for showing all the different places the heat can come out are either flashing or out ...Page 6 “Program” will turn on solid (no blinking). The display will show a number (e.g. 7.8), which will be the firmware version on your CoolBot Pro. POWER INDICATOR LIGHT: This light is constantly on (solid), as long as your CoolBot Pro is plugged in and getting the correct power supply (110V-230V).be ameliorated, mitigated or obviated while still maintaining the essential functionality of the CoolBot Pro. User accepts all responsibility in the use of and monitoring of the CoolBot Pro and A/C. User assumes all risk of loss of property or product due to improper functioning of the CoolBot Pro (or A/C). User assumes all risk of injury andA slowly blinking Heater Activity Light is completely normal during operation. It indicates that the CoolBot is “Calling for Cooling and the Heater Cable is getting hot. The defrost …An interruption or inconsistency in the power supply to the water heater can cause the status light to blink, indicating an electrical issue. 6. Gas Supply Issues. If the heater relies on gas and there are problems with the gas supply, such as a lack of gas or a gas valve issue, it can trigger a blinking status light.

The only way to solve this issue is to replace the ICM. The following instructions will guide you through Pentair MasterTemp 400 Ignition control module replacement. Step 1: Remove the heater’s left side panel. There are four screws that need unscrewing. Step 2: Separate the Max-E-Therm heater from the system.What is an electric heater and how it works? See the illustration and basic principles of this device that has been around for many decades to keep you warm during winter. Expert A...Welcome to Backyardplus! In this post, we are going to show you how to diagnose and replace a bad control T-stat thermistor (temp sensor) on a 1997-Forward Hot Spring spa, Tiger River spa, and Limelight spa. If you have a flashing green ready light on your control panel or a flashing green logo light, it means you probably have a bad temp sensor. Always replace both sensors at the same time ...Just Replaced My Hot Spring Heater Relay - Flashing Red Light! Just Replaced My Hot Spring Heater Relay - Flashing Red Light! By ram48197 March 27, 2011 in Portable Hot Tubs & Spas. Share More sharing options... Followers 0. Reply to this topic; Start new topic; Recommended Posts. ram48197. Posted March 27, 2011. ram48197. … A slowly blinking Heater activity light is completely normal during operation. It indicates that the HEATER is getting hot, and the CoolBot is “Calling for Cooling.” NOTE: The defrost of your A/C is not heat assisted; it defrosts by turning your compressor off and circulating air over the frosted coil. TDI. Currently none. May 26, 2012. #3. Flashing Glow Plug, but not limping (reduced power aka limp mode), or engine stalling out means you are probably ok. Looked thru my Golf manual and cannot find a reference to blown bulbs triggering a flashing GP, but JSW may be different. Next engine start see if it comes back.Light on oil furnace blinking. says its in lockout mode. push red button but wont reset - Answered by a verified HVAC Technician. ... produced as beckett by honeywell model R7184B with a note compatible with R7184B1024 ran out of oil on hot water heater would not reset is it the con ...Makeshift Coolbot It uses two STC-1000 units in series, as stated in a previous post, but instead of connecting the a/c unit, the STCs trigger a small 5v light bulb. I used two STC-1000 units, a 5v light bulb and a 5v power supply (old cell phone charger). First, I connected the +wire from the power supply to the light bulb.

An interruption or inconsistency in the power supply to the water heater can cause the status light to blink, indicating an electrical issue. 6. Gas Supply Issues. If the heater relies on gas and there are problems with the gas supply, such as a lack of gas or a gas valve issue, it can trigger a blinking status light.Heater Mode: From the Room Mode, press the right arrow twice to access the Heater Mode. The light above “Heater” will turn on solid (no blinking). The display will show an “F” for Fahrenheit or a “C” for Celsius. Program Mode: From the Room Mode, press the right arrow 3 times to access the Program Mode. The lightMy first Chrysler vehicle. I just noticed this morning that on a cold start ( -20C ) as soon as I press the unlock button on the remote the rear defrost light start to flash and all the heat and blower controls are locked out. I can hear some of the blend doors moving and after a minute or two everything works and the light goes out.CoolBot Controller. $ 374.00. Check out the reviews! Allows a standard window air conditioner to cool a room to 34 F! Build your own walk-in cooler – trusted by farmers, florists, hunters, brewers, restaurants, convenience stores, mortuaries, and more. Installs in minutes – no tools or electrical knowledge required.Step 1: Pilot Lights, Status Light Flashes. Look at the Status Light on the gas control valve. If the Status Light is flashing more than once every three seconds or not flashing at all, select the appropriate code below. If the Status Light is flashing once every three seconds, the pilot light is lit and the gas control valve is working properly.

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Power Light is Flashing or in some cases, Heater Turns On at Max Heat setting but then Shuts Off in 2 seconds with Power Light Flashing. Follow Auto Safety Shut-off instructions to reset the heater and allow sufficient time for the heater to cool down before plugging in again. Set heater upright on a level surface.Any time an error, fault or function code is displayed, service will be required. Please Note: Any failure of the heat pump will result in an automatic switch to the resistance heat mode to ensure a constant supply of hot water. For service and support on the GeoSpring Hybrid Electric Water Heater, please contact 1-888-443-4394, Monday - Friday ...Just had the same thing happened to my Aquael ultra heater. all LED lights are flashing/blinking from the top to both ends. ... Soak it in 25 degree water for 15 mins > turn on and off the heater 5 times quickly all within one second > it should complete the recalibration itself and function like normal again. HEATER ACTIVITY INDICATOR: During normal operation and when “calling for cooling” this light will blink slowly. It will stop blinking if the room temperature has reached the “set point” or the fins are reaching the freezing set point. INPUT TOUCH KEYS CHECKMARK KEY: Press to enter the setup menu, save values, and exit each particular mode. Country. 14 Apr 2015. #1. Hi all. We have a WB Greenstar Junior 28i and I noticed the heating wasn't coming on but the hot water worked. I looked at the panel on the boiler and on thee left hand side the Heating was set to 'off', where usually it is on 'timed'. I went to change it but on pressing the 'select' button nothing happened, it just ...If your Kerosene Portable Heater is not firing, there could be a couple reasons causing this issue. Possible Cause #1. If you are trying to light your KFA Portable Heater and you notice little or no air pressure registering on the pressure gauge, there may be an issue with one of the following components: 1. Air filter . 2. Air hose . 3. Air ...

5 posts · Joined 2017. #1 · Apr 19, 2017. I have an 05 2500 with a stage 2 bd turbo, 90 over injectors and a smarty touch tuner. My grid heater light keeps coming on while I'm driving along with ten dings. It normally comes on while driving 65+ then will go away. I'm not throwing any codes.If your Litter-Robot 3 troubleshooting is more complex than the scenarios described above, you'll likely notice lights flashing sequentially: Flashing yellow to red means the motor has detected an obstruction or jam. Turn the unit off and remove the bonnet and globe. Check for gear or motor obstruction.The Bradford water heater blinking 5 times will be resolved. 3. Relight The Pilot. After replacing the gas control valve, it is time to light the pilot of your Bradford white water heater. But before attempting to relight the pilot light, you have to ensure there isn't a gas leak.A slowly blinking heater light on your CoolBot is normal and indicates that the heater is getting hot and the CoolBot is calling for cooling. It is important to note that the defrost of …Whale hot water heater does not operate - TrailLite models In the unlikely event of a failure, the red LED on the Control Panel will light. It will flash a number of times, pause and repeat until switched off. Count the number of flashes and refer to the table below: Your Whale hot water can be heated using gas or mains.If the "Ef" message stopped flashing and the Fins Mode Indicator Light stopped flashing rapidly you are now working in the "Safety Mode". Insert the tip of the sensor into the fins of the A/C (center bottom) following the same recommendations as ... Unplug the Heater Cable from the CoolBot. Inspect the cable for possible damages in the ...1. Check the power supply. If the power light of your Panasonic air conditioner is blinking and the unit itself is turning on & off frequently then it means that you need to check the power supply of the air conditioner. Check if the power cable is completely okay and also if there is not any short circuit in the whole power circuit that is ...- Press the ü button. Your desired “set-temperature” will appear, blinking in the display. - Use the arrow buttons to increase or decrease the temperature. - Press the ü button to …[email protected] 13. When securing the A/C cover back into the cabinet, after the CoolBot has been connected to the A/C and the A/C harness has been securely connected (step 12), carefully route the CoolBot Heater and Fins Sensor cables using the opening at the right side of the cover (1).

Step One: Once the engine is completely cool, take the cap off the coolant reservoir and let any ambient pressure equalize. Step Two: Pour in just enough coolant to bring the line on the reservoir up to the COLD mark. Step Three: Start the engine and let it run for a minute or two. Keep an eye on the coolant level, and look out for obvious coolant leaks under the car.

Keep in mind that the sensor is located near the top of the heating unit. So, you can try putting the top third of the heater to the same level as the output nozzle of your filter or pump if possible. If you need to move the heater, we recommend that you unplug it from the power outlet first.CoolBot cannot connect to unsecure Networks (Networks without a password). STEP 8 Once the CoolBot Pro is connected to the network, you should see no codes flashing on the CoolBot Pro display. If your device (PC, tablet, phone, etc.) did not automatically switch back to your usual Wi-Fi settings use the method outlined in Step 6 to switch them ...The temperature sensor is pulled out of the fins and placed along side the heater wire and then wrap the heater and temp sensor together with aluminum foil. ... Ok here are some pics of heat sensor and fin sensor without and with plastic covering as well as a pic of the actual coolbot. The red light for heat is flashing. I also turned on the ...Make sure the space heater is not plugged into the same circuit as the lights. If they are on the same circuit, consider using the space heater in a different outlet or room to avoid flickering lights. Causes of Flickering Lights When Space Heaters Turn On. There are a few different causes for lights flickering when space heaters are turned on. Heater Mode: From the Room Mode, press the right arrow twice to access the Heater Mode. The light above “Heater” will turn on solid (no blinking). The display will show an “F” for Fahrenheit or a “ ” for elsius. Program Mode: From the Room Mode, press the right arrow 3 times to access the Program Mode. The light Give the system 5 minutes to get rid of any build-up gas. Turn the water heat dial to ‘low’ and the pilot dial to ‘pilot’. Turn the pilot dial downwards and simultaneously push the igniter button. Let go of the latter, but keep pushing the pilot button for 30 seconds more. If you have a gas water heater, you might be used to thinking ...One of the most common reasons why your water heater's status light may be blinking is because the pilot light went out. The pilot light is a small flame that ignites the gas burner, which then heats the water in the tank. If the pilot light goes out, it may indicate a problem with the gas supply, thermocouple, or ignition system.Is your Navien tankless water heater flashing an orange light? Watch our step-by-step guide to troubleshoot and fix the issue. We cover everything from inter...

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Litter-Robot 4: Light codes guide. Litter-Robot 4 control panel features 5 buttons and an LED display for easy operation. Blue flashing. If your unit's light bar is flashing blue, this indicates that the waste drawer is full. Empty the waste drawer, press the Reset button, then press the Cycle button. Learn more.Here are some of the best outdoor heaters for restaurants to keep your customers warm and cozy when they want to dine outdoors to enjoy a meal. If you buy something through our lin...This customer had a functional operation limited to 3,000 lbs. of production a week from a group of 34 milk producers. Within 6 months of installing a CoolBot powered walk-in-cooler Jocón Milk Collection Center increased production to 17,000 lbs. per week. Our revolutionary walk-in coolers have been featured by TED, USAID, Feed the Future, and ...Typically, a CoolBot can get down to 32 degrees Fahrenheit on its coldest setting. Your system should also be able to go up to around 65 degrees on its warmest setting, so this should be able to suit a wide variety of temperature needs. On top of that, CoolBot systems feature a digital thermostat that you can use to choose a temperature that ...Pull over as soon as it is safe and turn off the engine. Allow the engine to cool down, then check the engine coolant level. If the engine coolant level is low, add engine coolant. Restart the vehicle and check if the temperature light has turned off. If the temperature light keeps flashing, check if the cooling fan is spinning by looking at it.Here are some steps to troubleshoot the issue: 1. Consult your manual: The first and most crucial step is to refer to your water heater's user manual. This manual will explain the specific meaning of the flashing green light for your model. Your best source of accurate information is the manual for different brands and models.Space heater was not working & kept overheating on high causing a flashing "88" error. As suspected the heating element was clogged with dust and debris. Rea...We don’t have an exact temperature, but during normal operation when the heater light blinks at the bottom it gets into the 90 degree range, just enough to trick the A/C. When doing the test per the video and the light is solid for the first 20 seconds, it gets well over 100 degrees and should be noticeably hot by the end of the solid on period.Rheem Gas Water Heater Red Light Code Flashing 1 Time. If your Rheem tankless water heater's red flashing light is blinking once every 3 seconds, it is in operational mode. It also means the temperature mode is also just fine and in the pilot position. In short, if the light flashes 1 time with a 3-second pause every time, it is working normally.Heater Mode: From the Room Mode, press the right arrow twice to access the Heater Mode. The light above “Heater” will turn on solid (no blinking). The display will show an “F” for Fahrenheit or a “ ” for elsius. Program Mode: From the Room Mode, press the right arrow 3 times to access the Program Mode. The lightAn interruption or inconsistency in the power supply to the water heater can cause the status light to blink, indicating an electrical issue. 6. Gas Supply Issues. If the heater relies on gas and there are problems with the gas supply, such as a lack of gas or a gas valve issue, it can trigger a blinking status light. Frequently Asked Questions. Common questions about the CoolBot, A/Cs, Uses, humidity, winter use, etc. ….

1 Heater Cable - CoolBot heater cable (red tip) with external 2.5mm jack connector 1 Power Supply - Mini-USB port connector with 110V-240V input/ 5V, ... temperature and the Room Mode indicator light is solid (no blinking). Fins Mode: From the Room Mode, press the right arrow once to access the Fins Mode. The light above "Fins" will turn on ...Heater Mode: From the Room Mode, press the right arrow twice to access the Heater Mode. The light above “Heater” will turn on solid (no blinking). The display will show an “F” for Fahrenheit or a “ ” for elsius. Program Mode: From the Room Mode, press the right arrow 3 times to access the Program Mode. The light1. The Gas Control or Valve Is Faulty. Gas control valve failures don't happen frequently, but they can cause your water heater to blink 7 times. The gas control valve controls the gas flow to the pilot light and burner. It also regulates water pressure. If there is an issue with the valve, it may not open properly, leading to a shutdown of ...The Green LED lit indicates the relay board is receiving power from the incoming circuit that powers the heater. A Red LED lit indicates that the relays are energized at which point you should have correct voltage (240V/120V depending on model) when testing with a voltage meter across the H1 and H2 heater terminals on the incoming power terminal block.Jul 31, 2023 · The flashing red light may indicate that sediment buildup has reached a critical level, requiring attention. High temperature limit switch tripped: The water heater is equipped with a safety feature called a high temperature limit switch. If the water temperature exceeds the set limit, the switch activates to prevent overheating. Rotate the gas knob on your Rheem water heater clockwise until it is in the "Off" position. Rotate the water heater temperature dial counterclockwise until it is set to the lowest temperature setting. Wait 5 minutes to allow any gas in the water heater to pass through. Lift off the outer door of your water heater.Check to make sure the light bulb is screwed in tightly and that it is the right kind of bulb for the fixture. 2. Type of Bulb. The flickering or blinking lights could be due to the type of bulb you are using. A fluorescent bulb, for instance, tends to flicker when it is warming up. 3.Jumper and go with a blinking Program Mode Indicator Light on the CoolBot controller. Unless otherwise. noted, if you see the same error code for more than a minute, reboot the CoolBot (see page 3) EE. CoolBot Jumper. E0.Hold down the reset button afterward. A good rule of thumb is to hold the reset button for about 5 seconds. After a minute, you could start turning on the switches again, and it should already stop blinking green lights. Consequently, if the blinking persists, the next best thing to do is call a professional. Coolbot heater light flashing, The Green LED lit indicates the relay board is receiving power from the incoming circuit that powers the heater. A Red LED lit indicates that the relays are energized at which point you should have correct voltage (240V/120V depending on model) when testing with a voltage meter across the H1 and H2 heater terminals on the …, When I turn on the power to the unit, the pumps turn on, and the heater starts heating and I get a solid red heat light on the topside. Everything seems to work okay until the water gets to a certain temperature that's warmer than lukewarm, but not quite hot. Once it reaches this temp, the heater shuts off, and the topside heater light blinks., 1. Check the power supply. If the power light of your Panasonic air conditioner is blinking and the unit itself is turning on & off frequently then it means that you need to check the power supply of the air conditioner. Check if the power cable is completely okay and also if there is not any short circuit in the whole power circuit that is ..., switching between fahrenheit and celsius .....12 rebooting your coolbot .....12 troubleshooting guide .....13 “er” showing on my coolbot display .....13 “ef” flashes on my coolbot display .....14 “eh” showing on my coolbot display .....14 my heater does not seem to be working ....., I have disconnected the heating element and have 15ohms resistance across the black/white wires, so I believe the actual heater should be ok. On the newer 77119 heater relay circuit board there are two small lights one red and one green, located at the very top/center of the board. The green is lit solid, and the red is flashing very rapidly., Step #3: While holding the knob, press the piezo igniter button at the same time. Keep pressing both buttons until the status light starts blinking. Step #4: Take a look at the viewport to see if the pilot light comes on. If yes, release the valve and set the knob to your desired temperature setting., Fix: Check the power source, ensure the furnace switch is on, the circuit breaker hasn't tripped, and that all fuses are intact. 3. System Lockout (2 Flashes) Problem: The furnace has attempted to ignite a flame but failed, or there is reversed polarity. Fix: Reset the furnace by turning it off and on., The AC light flashing means that the compressor is performing the run in protection. You do this when you replace the compressor with a service function and it runs for about 120 seconds to circulate the oil in the Ac system before fully running the ac compressor for the first time., Three red flashes indicate that the pressure switch circuit in your furnace is open or that the induced draft blower is working when it should not be. If you see four flashes, it means your furnace has a primary open limit circuit. Five red flashes indicate that your furnace senses a flame but does not get a heat request., The CoolBot's heater light blinking indicates normal operation. To get the CoolBot back online, follow the Wi-Fi and app setup guide. For a factory reset, watch a tutorial video. In the event of an AC icing up or a room not cooling, there are specific troubleshooting videos available. Additionally, there is a complete list of guides for ..., For example, if the room temperature is at 66°F (18.8°C) and the thermostat is set at 68°F (20°C), the heater will be cycling often. How to fix incorrect furnace thermostat setting. If your Goodman furnace is short cycling due to a low set temperature, set the temperature level a few degrees upwards. ... If your Goodman furnace yellow light ..., be ameliorated, mitigated or obviated while still maintaining the essential functionality of the CoolBot Pro. User accepts all responsibility in the use of and monitoring of the CoolBot Pro and A/C. User assumes all risk of loss of property or product due to improper functioning of the CoolBot Pro (or A/C). User assumes all risk of injury and, 6 posts · Joined 2022. #1 · Jul 26, 2022. I have a 2016 Jeep Patriot 2.4L with 40K miles on it. I had to disconnect the battery and afterwards the defrost light will blink for about 10-20 seconds when the vehicle is started. Nothing will work while the defrost light is blinking but once it stops, all hvac controls will work., Lay the air conditioner and temperature sensors together and use aluminum foil to wrap the two cables together. Plug the heater cable into the heater jack on the CoolBot. Push the air conditioner fins apart carefully. A 1-inch hole should suffice for this step. Insert the temperature sensor with a blue cable and a black tip into the hole., This code relates that your furnace’s limit switch is stuck while being open. The problem is typically a dirty air filter, the wrong-sized ductwork, the wrong blower speed setting, or a bad blower motor. 5 Red flashes. The roll-out switch is jammed while being open. The roll-out control will automatically be reset., Do you know how to make a solar water heater using a can? Find out how to make a solar water heater using a can in this article from HowStuffWorks. Advertisement You can harness th..., Before I changed the heater board, the jets and lights and everything still worked. The only issue was the tub wouldn't get up to temp. Put in the new board and now I get the red flashing light. I decided to put the old heater board back on to see if the new board is just bad. With the old board on the tub is still just flashing red., Please follow these steps: Unplug the power supply from the ° CoolBot Pro. Plug your °CoolBot Pro power back in. You will see the EE code again. Using either arrow key scroll over so the Program light is solid and screen reads 7.8 or 7.9, then tap the checkmark 5 times until screen reads P1. Using either arrow key scroll over until CE is on ..., Heater Mode: From the Room Mode, press the right arrow twice to access the Heater Mode. The light above “Heater” will turn on solid (no blinking). The display will show an “F” for Fahrenheit or a “ ” for elsius. Program Mode: From the Room Mode, press the right arrow 3 times to access the Program Mode. The light, Reopen the shutoff valve. Relight the pilot light. Turn the control valve to "on". When the gas burner comes on, use a 50/50 dish soap/water mix to test the screw joints for air bubbles that indicate leaks. Note: When relit, the water heater pilot light flame should wrap around the thermocouple bulb., Reaction score. 17,066. Location. Livingston. Country. 6 Jul 2020. #2. The slow blinking green LED simply means that the boiler is in stand by, there is no demand for heating, you have an external control failure, check the room thermostat and timer or whatever you have , if you are not sure post pics of what you have., The AC light flashing means that the compressor is performing the run in protection. You do this when you replace the compressor with a service function and it runs for about 120 seconds to circulate the oil in the Ac system before fully running the ac compressor for the first time., Flashing lights on a dimplex storage heater? - Find out how to mend it, for free. ... As the setting is raised, the power light goes off and the "on" light starts flashing. Any help would be greatly appreciated, Thank you. John Dyhouse September 2015. Dimplex Heating, Home Heating Systems Flashing Lights Heater., Check to make sure the light bulb is screwed in tightly and that it is the right kind of bulb for the fixture. 2. Type of Bulb. The flickering or blinking lights could be due to the type of bulb you are using. A fluorescent bulb, for instance, tends to flicker when it is warming up. 3., Nov 3, 2021. #1. So I have a flashing glow plug heater light for 10 seconds or so every now and then on a cold start. Research tells me its a possible failed Glow Plug. Also the odd failed start sometimes. Engine runs great when running etc. A set of 4 from Euro Car Parts is £70. I know removing them is best with the engine hot etc., Love At First Sight: Romance in Blooms Meets CoolBot; CoolBot Spotlight: Customer Support Team Member, Pete Burns; CoolBot Spotlight: Customer Support Lead, Dan Schumacher; CoolBot Walk-in Spotlight: Sales Manager, Caleb Brock; CoolBot Huge Savings for Saskatchewan Elk Hunter, Step #3: While holding the knob, press the piezo igniter button at the same time. Keep pressing both buttons until the status light starts blinking. Step #4: Take a look at the viewport to see if the pilot light comes on. If yes, release the valve and set the knob to your desired temperature setting., Encountering a flashing orange light on your Navien tankless water heater can be puzzling without an error code. This video guides you through simple trouble..., An excessively high voltage from the sensor is sent to Engine Control Module (ECM). Description: The Intake Air Temperature Sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM). The temperature ..., Keep in mind that the sensor is located near the top of the heating unit. So, you can try putting the top third of the heater to the same level as the output nozzle of your filter or pump if possible. If you need to move the heater, we recommend that you unplug it from the power outlet first., With engine idling, turn blower switch to high. Turn mode switch to panel. Open all A/C outlets. Move temperature lever to full cold. 3. Press and hold rear wash and A/C buttons simultaneously for 5 seconds (until all LEDs illuminate). All LEDs should illuminate for 5 seconds., Concerned about Eheim Jager Heater (Light is Always On - My Other Brands have... check the instructions that came with the heater. the eheim heaters need to be calibrated. Last edited: Nov 23, 2013. Reply. Nov 23, 2013 #13 OP . OP. that Reef Guy Frag Swap Crusader! View Badges. Joined Sep 21, 2012 Messages 11,636 Reaction …, Is your AO Smith hot water heater flashing a red light? Watch this video to learn how to troubleshoot and fix the issue yourself. We cover everything from ch...