23
02/23
7021-802K
Table 23.1
With proper installation, operation, and maintenance your appliance will provide years of trouble-free service. If you do
experience a problem, this troubleshooting guide will assist a qualified service person in the diagnosis of a problem and the
corrective action to be taken. This troubleshooting guide can only be used by a qualified service technician.
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Plug in appliance -
No response.
No current to outlet.
Check circuit breaker at service panel.
7 amp fuse defective.
Replace fuse.
#3 snap disc tripped or defective.
Reset or replace snap disc.
Control box defective.
Replace control box.
Call light on. No fire.
No fuel in fire pot.
Out of fuel.
Check hopper. Fill with fuel.
#2 snap disc may be defective.
Replace snap disc.
Vacuum switch not closing, no vacuum.
Check exhaust blower is plugged in and operating.
Check vacuum switch is plugged in.
Check vacuum hose is in good condition, clear and
connected at both ends.
Check thermocouple is in good condition and
plugged in properly.
Make sure venting system is clean.
Make sure front door is closed.
Control box defective.
Replace control box.
Call light on. No fire.
Partially burned fuel in fire pot.
Fire pot clean-out plate not closed.
Check that fire pot clean-out plate is fully closed.
Clean fire pot. Make sure there is no clinker in the
fire pot. See
Cleaning Fire Pot with Cleaning Rod
& Fire Pot Scraper
Fire pot is dirty (missed ignition).
Clinkers may have to be broken up with fire pot
clean-out tool or other means.
Call light on. No fire.
Unburned pellets in fire pot.
Fire pot clean-out plate not closed.
Check that fire pot clean-out plate is fully closed.
Fire pot is dirty.
The ignition hole between the igniter bracket
and fire pot is blocked.
Clean fire pot. Make sure there is not a clinker in the
fire pot. Clinkers may have to be pushed out of fire
pot with fire pot clean-out tool or other means.
Scrape with solid piece of wire.
Igniter not working.
Remove ash drawer to see if igniter is glowing red
on start-up.
Check igniter wires for good connection.
Replace igniter using 1/4 inch (6mm) male /female
spade connectors.
Control box defective.
Replace control box.
Slow or smoky start-up.
Fire pot clean-out plate not closed.
Fire pot is dirty.
Check that fire pot clean-out is fully closed.
Clean fire pot. Make sure there is not a clinker in the
fire pot. Clinkers may have to pushed out of fire pot
with fire pot clean-out tool or other means.
Excessive amount of fuel at start-up.
Reduce feed rate using feed rate adjustment control
rod located inside hopper.
Dirty exhaust and/or venting system.
Check for ash build up in appliance, including behind
rear panels, firebox, heat exchanger, exhaust blower
and venting.
No call light. Appliance does
not begin start sequence.
Thermostat not set to a high enough temperature. Adjust thermostat above room temperature.
Snap Disc #3 tripped.
Reset snap disc.
No power.
Connect to power.
Fuse blown.
Replace fuse.
Connections at thermostat and/or appliance
not making proper contact.
Check connections at thermostat and appliance.
Defective thermostat or thermostat wiring.
Replace thermostat or wiring.
NOTE:
To test thermostat and wiring, use a jumper
wire at the thermostat block on the appliance to by-
pass thermostat and wiring.
Control box defective.
Replace control box.
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Troubleshooting Guide