An electric heater that blows cold air could be caused by several reasons. Check out this blog post for troubleshooting help.
You must use a voltmeter.
Please note: Testing with a voltmeter requires the circuit panel or fuse box to remain on. If you’re unfamiliar or uncomfortable with electrical wiring, please contact a qualified technician or licensed electrician.
The appearance of soot, or black discoloration on the walls around electric wall heaters, is not caused by the heater itself.
Grill discoloration can be caused by dirt or lint build-up in the heating element.
No—the best way to control your heater is with a thermostat.
If your wall heater is cycling on and off every 15 seconds, and you are controlling your heater with a digital thermostat, then likely you need to update one of the thermostat settings.
If the heater does not turn on, it may have reached abnormal temperatures. If the manual reset trips (which turns the heater off), the heater probably needs to be cleaned or it’s blocked.
Please don’t. Cadet uses a powder coat paint system that is electrostatically applied and baked on the surface. All Cadet heaters and accessories are listed by UL as manufactured, and shouldn’t be altered in any manner.
Make sure the voltage supply matches the heater rating and that the heater is clean. If it continues to run slowly, the motor and/or heater may need to be serviced or replaced.
On initial start up, your heater may smell. This is not dangerous, and is due to the manufacturing process. It typically goes away after the heater runs for several hours.