Bath fan heater not working: Common Causes & How to Fix

Repair Instructions:

Use a multimeter to check if the heating element has electrical continuity. Set the meter to ohms setting and touch the probes to the element terminals. No beep or low/0 reading means a broken circuit. Bad elements won't conduct electricity for heating. They must be replaced when faulty. Heating elements can't be repaired once burned out. An open circuit shows a bad element that needs replacing. Make sure power is disconnected before testing. Compare readings to a known good element to confirm. Match new elements to the model's voltage and wattage. Proper installation restores hot water supply. Test continuity to diagnose elements before replacing. Low meter readings verify the element has failed.

How to Replace Bath Fan Heating Element

1. Turn off power to the fan at the breaker box and verify it is fully disconnected.
2. Remove the fan grill on the ceiling by unscrewing the screws and disconnecting wiring. Set aside.
3. Locate the heating element - it is a coil attached to the housing around the blower wheel.
4. Disconnect the heating element wiring by unscrewing the wire nuts and separating the wires. Make note of connections.
5. Unscrew or loosen retaining brackets that hold the heating element in place.
6. Remove the old heating element and install the new one in the same position.
7. Reconnect the wiring according to your notes from step 4. Make sure connections are secure.
8. Replace retaining brackets to hold heating element firmly in place.
9. Replace the fan grill and reconnect wiring.
10. Restore power and test to make sure heating element works before finishing.
11. Complete installation by insulating any exposed wiring and replacing grill.
12. Restore power and enjoy your working bath fan and heating element!