fan heater not heating

fan heater not heating

Heaters are a great source of warmth during the cooler months, as they provide a method of heating up an area quickly, often without the need of additional lighting. Unfortunately, sometimes these convenient appliances can malfunction and not provide the much-needed heat you're looking for. If your fan heater isn't heating, there are a few steps you need to take in order to identify the cause and repair the problem. Below is a guide on what to do if your fan heater isn't heating up properly.

Step 1: Check the Power Source

The first step towards solving your heating issues is to check that your fan heater is powered correctly. If you have an electric fan heater, check that it is plugged into a working power outlet as well as whether the switch on the wall or power point is turned on. If you have a gas fan heater, make sure that the gas supply is adequately connected and that the pilot light is lit.

Step 2: Check the Air Filter

The fresh air intake filter in your fan heater may need to be cleaned. A dirty filter will restrict airflow, making the heater less efficient in producing heat. To check for a dirty filter, remove the filter from its place and hold it up to a strong light to see if it is clogged or discolored. If you find this to be the case, you should use a vacuum cleaner or damp cloth to clean the filter before replacing it back in its place.

Step 3: Test the Heating Element

If your fan heater is switched on and the power supply is fine, but it still isn't producing any heat, you will need to test the heating element. This involves using a multimeter to test the electrical resistance of the heating element. The resistance should be within a certain range determined by the manufacturer, and the test will tell you if the heater is producing any current or not.

Step 4: Check the Fan Motor

If the heating element is working, the next step is to examine the fan motor. This should be turned easily by hand, otherwise it may indicate that it's defective and needs to be replaced. There is also a small resistor in the motor which may need to be checked and replaced if it is faulty.

Step 5: Check the Heating Coils

The heating coils may need to be replaced if they are damaged or worn out. With an electric fan heater, this means removing the cover to expose the coils and then testing them to see if they are producing a current. If you find that one of the coils is defective, you need to switch off the power to the unit before attempting to replace the coil.

Step 6: Check the Thermostat

The thermostat is an important component that determines how hot the fan heater gets. If it is stuck in the 'on' position, the fan heater may never stop running and could even overheat. If you suspect that the thermostat is faulty, you will need to switch off the power to the unit and then test it for any electrical current.

In some cases, a thermostat may need to be replaced or reprogrammed. You can read the instructions in the manual to complete this task correctly.

Step 7: Check the Safety Features

Most fan heaters are fitted with safety features such as a tip-over safety switch or over heat protection switch. If these switches are out of alignment or faulty, the fan heater may not be able to start. To test these features, you will need to refer to the manufacturer's instructions in order to do it properly.


If your fan heater isn't heating up properly, it can be caused by a number of things. From a faulty power source to a dirty air filter, it’s important to identify the cause in order to get your fan heater working properly again. With the steps outlined above, you can easily diagnose the cause of your heating problem and take the necessary steps to get your fan heater up and running again.

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