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  1. After the unit reaches the correct tempreture the blower shuts down but the heating element stays on. The only way I can shut it down is to turn off the breakers. Do you have ant idea what the problem is?

  2. Dec 2, 2013 · 4 Dec 2020. #4. If it has tripped out, it could be to do with the ambient temperature where the cylinder is stored. If it gets too hot underneath the immersion cap then it will cut out. If its in an airing cupboard, remove all towels etc, leave the door open to provide ventilation for a day or so and this should tell you whether it is the ...

    • Overview
    • Cutting Power and Removing the Panel
    • Inspecting Your Unit
    • Rebooting the Furnace

    Resetting a furnace is a simple and straightforward way to fix simple problems with your heating. It involves turning the power to your furnace off, checking the basic elements of the furnace, and waiting a little bit before turning the power back on. Most often, problems with your furnace stem from issues with the filter or pilot light, both of wh...

    Flip the light switch on the side of your furnace.

    Almost every furnace has an electrical component. Even gas furnaces use electricity to power the fan and motor. Start by shutting off your furnace’s electrical components. Look on the exterior sides of your furnace for a light switch. Flip that switch to shut down power to the furnace’s fan and motor.

    Some really old furnaces won’t have a switch. If your furnace doesn’t have a switch, simply ignore this step and move on to turning off the breaker.

    The light switch will typically have a faceplate and an electrical box to house the wires, just like a regular outlet.

    If you flip the switch and your furnace kicks on, you were probably trying to troubleshoot the furnace when it was off!

    Turn the furnace’s breaker off by flipping the switch on your fuse box.

    Pull out the air filter to see how dirty it is.

    While your furnace is off and the door is open, look for a flat cardboard or plastic frame that occupies a slot between the side, top, or bottom of your furnace and a vent. This is your filter. Pull it out and check the filter for excessive dirt. If necessary, you can

    If your filter has a cardboard frame, it is disposable. If it has a plastic frame, it is reusable.

    Clean a plastic filter with warm water and a clean cloth. Replace disposable filters by buying a filter that is the same size as the original and sliding it in. The dimensions for a disposable filter are always printed on the side of the frame.

    If you are troubleshooting a problem, a dirty or clogged filter is one of the most common causes for poor airflow or heat.

    Read the oil tank’s gauge on an oil furnace to make sure that it’s filled.

    Flip the furnace’s breaker back on.

    Start by flipping the breaker for your furnace’s room. Check the other light switches and appliances in your room to ensure that electricity is flowing to every part of the room. Wait 10-15 seconds.

    If you flipped the main breaker, ignore the room-specific breakers and just flip the main.

    Turn the electricity to your furnace back on and wait 30-45 minutes.

    Once you’ve confirmed that the electricity in the room is working, flip the switch for the power on your furnace and wait 30-45 seconds for it to turn on. You should hear the motor and the fan kicking on in under a minute.

    The older a furnace is, the longer it may take for it to start.

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  3. Pilot stays on but the furnace doesn’t come on, step 2. Push the reset button on the limit switch and try raising the thermostat setting again. The limit switches on older homes don’t have a reset button. Pilot stays on but the furnace doesn’t come on, step 3. Replace the limit switche(s).

  4. Section 4: General Heater Information 4.3 Low Voltage Reset (Button) The Hydro-Hot's Electronic Controller must be manually reset whenever the Low Battery Voltage fault indicator light has been activated, reference Figure 5. To reset the Electronic Controller, simply depress the "Low Voltage Reset" button located on the Electronic Controller ...

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  6. If no continuity and infinite resistance is what you read, try pressing the reset button on this control (the red "RESET" button in our photo at left). If you cannot reset the control then this device is not working and it needs to be replaced. FYI we do not usually find a problem with this electric water heater high limit cutoff switch.