Operating instructions

Troubleshooting Chart
Symptom Problem Solution
MAINTAINING YOUR HEATER
WARNING! Before removing grill, turn the electrical power off at the electrical panel
board (circuit breaker or fuse box). Lock or tag the panel board door to prevent someone
from accidentally turning the power on while you are working on the heater. Failure to do
so could result in serious electrical shock, burns, or possible death.
WARNING: Any other service not detailed in this Owner’s Guide should be performed by an autho-
rized service representative.
*CONSULT LOCAL ELECTRICAL CODES TO DETERMINE WHAT WORK MUST BE PERFORMED BY QUALIFIED
ELECTRICAL SERVICE PERSONNEL.
Maintenance As Needed, or every six months minimum.
1. It is important that you verify power has been turned off and no
power is going to the heater before proceeding. Circuit breakers
are often not marked correctly and turning the wrong breaker off
could mean electricity is owing to the heater, even if the heater
does not appear to be working. If you are uncomfortable working
with electrical appliances, unable to follow these guidelines, or do
not have the necessary equipment, consult a qualied electrician.
2. Once you verify the power has been turned off correctly, pro-
ceed to the next step.
3. Remove thermostat and timer knobs, screws and take off grill.
4. Wash grill with hot soapy water and dry immediately.
5. While holding fan (to avoid damage or bending), use a hair dryer
or vacuum on blow cycle to blow debris through the top element
(do not touch element).
6. Vacuum fan area without touching the elements.
7. Do not lubricate motor.
8. Replace grill and secure with screws. Replace thermostat and
timer knobs.
9. Turn thermostat to desired setting.
10. Turn power back on at the electrical panel board.
Breaker trips
immediately upon
energizing heater.
1. Incorrect supply voltage.*
2. Overloaded circuit.*
3. A short circuit exists in the
supply or heater wiring.*
4. Defective circuit breaker.*
1. Verify that supply voltage matches the heater rating.
2. The total amperage of all heaters on a branch circuit must not be more than
80% of the amperage rating of the circuit breaker and supply wire ratings. Use a
lower wattage heater, or reduce the number of heaters on the circuit.
3. Shorted supply or heater wires may be accompanied by severe sparking.
Inspect all supply and heater wiring insulation for damage. Do not reset the circuit
breaker until all electrical shorts have been repaired.
4. Replace the circuit breaker.
Heater fan
operates, but does
not discharge warm
air.
1. Insufcient element tempera-
ture.
2. Incorrect supply voltage.*
3. Element has failed.*
1. Allow a few moments for element to reach operating temperature.
2. Verify that supply voltage matches the heater rating.
3. Replace element.
Heater will not shut
off.
1. Heat loss from room is greater
than heater capacity.*
2. Thermostat is not functioning
properly.
1. Close doors and windows. Provide additional insulation, or install a higher
wattage heater or multiple heaters if necessary. (If your circuit is rated for more
capacity.)
2. Wait for the timer to time-out or turn the timer counterclockwise to `0’ (The timer
overrides the thermostat setting). If heater continues to run, adjust thermostat to
its lowest setting. If heater continues to run (allow two minutes for thermostat to
respond) the thermostat requires replacement.
Heater discharges
smoke or emits a
burnt odor.
1. Dust, lint or other matter has
accumulated inside heater.
2. Poor or loose electrical
connections.
1. Clean heater (see “Maintenance” section above for instructions).
2. Turn off power at circuit breaker. Inspect all supply and heater wire connections
to make sure nothing is loose or poorly connected. Secure or reconnect all loose
connections. Do not reset circuit breaker until all connections have been checked
and repaired.
Element heats for
a moment without
the fan turning, then
immediately stops
heating.
1. Defective motor or internal
connection.*
2. Fan or motor jammed.
1. Heater or fan motor requires replacement.
2. Remove obstruction and press heater reset button (after allowing the unit to
cool). Test heater operation—if reset button has been pressed (be sure to listen
and feel for a click indicating it has been reset), but heater does not run, heater
requires repair or replacement.
Heater does not
run.
1. Thermostat is set too low, or in
disabled (no heat) position.
2. Heater has tripped the manual
high-temperature reset switch.
3. Power not on at the circuit
breaker.
4. Broken or poorly connected
wire(s) to heater.
5. Defective thermostat and/or
timer.
1. Adjust thermostat to a higher temperature until heater operates (See Problem
#5 if the problem persists).
2. Press the manual reset button (See “Operating” section for instructions).
3. Turn on the correct circuit breaker in the main panel.
4. Turn off power at circuit breaker. Check supply wire continuity and proper con-
nection to heater wires.
5. Repair or replace the heater. The entire heater, or any of its components may
be checked for continuity to determine the cause of any problem.
Heater continually
trips the manual
reset temperature
limit control.
1. Dust, lint or other matter has
accumulated inside heater.
2. Airow is blocked.
3. Fan or motor is jammed.
4. None of the above.
1. Clean heater (See “Maintenance” section for instructions).
2. Remove obstruction. Maintain a minimum distance of 6 inches from adjacent
surfaces, 4.5 inches from the oor, and 3 feet for furniture or other objects placed
directly in front of the heater.
3. Remove obstruction, and press heater manual reset button (See “Operating”
section for instructions).
4. Replace heater assembly.
©2013 Cadet Printed in USA Rev 10/13 #720050
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