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7036-135E
September 1, 2008
R
Mt. Vernon Pellet Insert (AE)
9
Troubleshooting
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.
Error Message
Possible Cause Corrective Action
Bad wall control or control board
3 wires have loose connections or installed
wrong
Replace wall control or control board
Check connections
LOW BATTERY Battery supply on battery backup is drained Recharge battery
BAD TC DROP TUBE
TC = Thermocouple
Drop tube thermocouple is broken or leads are
reversed
Check connections
Replace thermocouple
BAD TC FIREPOT
TC = Thermocouple
Firepot thermocouple is broken or leads are
reversed
Check connections
Replace thermocouple
SNAP DISC TRIPPED Overheat sensor (snap disc) has tripped Unplug the appliance and then manually
reset snap disc
VACUUM SW ERROR
SW = Switch
Vacuum switch is bad
Vacuum hose is plugged/disconnected
Check connections. By-pass vacuum
with jumper wire, if run, switch is bad.
Replace switch
Check vacuum hose
COMB BLOWER JAMMED Combustion blower is blocked/jammed Remove blockage
Replace blower if necessary
Must unplug the appliance to clear error
AUGER JAMMED Auger jammed, feed motor bad Pull the feed system and inspect
Clear jam and then press Retry Button
MISSED IGNITION Igniter bad or poor harness connection
Out of fuel or fuel is bridging in hopper
Faulty firepot thermocouple, connection is
shorted
Check connections, if OK replace igniter
Break up bridging pellets
Refill hopper
Replace the thermocouple and then
press Retry
MIN FIREPOT TEMP Out of fuel Refill hopper
Add handful of pellets to the firepot
Press the Retry button
MAX DROP TUBE TEMP Wrong fuel table setting
Flame height set too high
Confirm setting matches burning fuel
Adjust flame height
CONV BLOWER JAMMED Convection blower blocked/jammed Remove blockage
Replace blower if necessary
Must unplug appliance to clear error
CHECK ASHPAN Auto-clean jammed
Auto-clean switch is bad
Linkage has become disconnected
If ash pan is empty, check for a jam. Use
a screw driver and firmly push in the
firepot floor holes and flex spring and
push toward home to release jam.
Replace switch
Reconnect linkage.
Hopper lid open while you refill hopper
Switch is out of adjustment (auger will not
function)
Fill hopper between cycles
Adjust or replace switch
SCREEN GOES BLANK Static discharge or nearby lightening or
Electric Fast Transients at the input mains
Unplug the power to the appliance and
plug it back in