Installation Guide
  Symptom Problem   Solution
TROUBLESHOOTING
 Rev 09/12/16 #730104
If you are uncomfortable working with electricity, running electrical supply 
wire or installing a circuit breaker, please consult a licensed electrician.
©2016 Cadet Printed in USA 
Heater doesn’t 
work at all.
1. Supply connections are 
loose.
2. Heater has tripped its 
built-in high-temperature 
safety shuto and electricity 
has stopped flowing to the 
heater.
3. Circuit breaker is faulty.
1. Turn o power at main disconnect panel. Inspect and/
or tighten all the wire connectors inside the heater and at 
any connection points inside junction boxes or at the wall 
thermostat. 
2. TO RESET: Turn power o at main disconnect panel. 
Allow 10 minutes to cool. Make sure heater is not blocked 
and is clean. Push reset button. Restore power. If the 
high-temperature safety shuto trips more than once a day, 
replace the heater.
3. Call a licensed electrician.
Breaker trips 
immediately after 
installing heater.
1. A short circuit exists in 
the electrical supply wires or 
heater wiring.
2. Circuit breaker and heater 
are not the same voltage. 
3. Circuit is overloaded.
4. Circuit breaker is faulty.
1. An incorrect connection in the heater or electrical supply 
wires may cause sparking or arcing. Inspect all heater and 
electrical supply wiring insulation for damage or call an 
electrician.
2. Double check the voltage of the heater to make sure it 
matches the voltage of the circuit. Replace heater with a 
model that is 240 volts.
3. Use a lower wattage heater, or reduce the number of 
heaters on the circuit. 
4. Call a licensed electrician.
Heater blows 
cold air or 
doesn’t get hot.
1. Circuit breaker is 120 volts 
and heater is 240 volts.
2. Element has failed.
1. Double check the voltage of the heater to make sure it 
matches the voltage of the circuit. Replace heater with a 
model that is 120 volts.
2. Replace heater.
Heater smells 
after installation 
or not being 
used.
1. Odor from element 
manufacturing process.
2. Dust or lint inside the 
heater.
3. Supply connections are 
loose.
1. On initial start-up, the heater may cause an odor due to 
the manufacturing process. It typically goes away within 
several hours.
2. Clean heater (see “MAINTAINING YOUR HEATER” on 
page 7 for instructions).
3. Turn o power at main disconnect panel. Inspect and/
or tighten all the wire connectors inside the heater and at 
any connection points inside junction boxes or at the wall 
thermostat.
Fan/motor 
doesn’t spin or 
spins slow.
1. Circuit breaker is 120 volts 
and heater is 240 volts. 
2. Defective motor or motor 
out of alignment.
1. Double check the voltage of the heater to make sure it 
matches the voltage of the circuit. Replace heater with a 
model that is 120 volts.
2. Replace motor blower.
Heater doesn’t 
turn o.
1. Thermostat is defective.
2. No thermostat hooked up 
to control heater.
3. Incorrect heater wattage 
for room size.
1. Replace thermostat.
2. A thermostat is required for all Register heaters. Pur-
chase a built-in or wall thermostat for your heater.
3. Install higher wattage model or additional heaters if 
circuit allows.
8
Reduce-Reuse-Recycle
This product is made primarily of recyclable materials. You can reduce your carbon footprint by recycling 
this product at the end of its useful life. Contact your local recycling support center for further recycling 
instructions.








