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7036-135G
November 22, 2011
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
qualifi ed service person in the diagnosis of a problem and the corrective action to be taken.
This troubleshooting guide can only be used by a qualifi ed 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
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
Convection blower may need cleaning
Turn power off to appliance and manually
reset snap disc then turn power back on
Clean convection blower if needed
VACUUM SW ERROR
(SW = Switch)
Vacuum switch is bad
Vacuum hose is plugged/disconnected
Check connections. Bypass vacuum with
jumper wire, if runs, switch is bad. Replace
switch
Check vacuum hose
COMB BLOWER JAMMED Combustion blower is blocked/jammed Remove blockage
Replace blower if necessary
Must unplug appliance to clear error
AUGER JAMMED Auger jammed, feed motor bad Pull the feed system and inspect
Clear jam and Press Retry
MISSED IGNITION Igniter bad or poor harness connection
Out of fuel or fuel is bridging in hopper
Faulty fi repot thermocouple connection has
shorted.
Check connections, if OK replace igniter
Break up bridging pellets. Refi ll hopper
Replace the thermocouple
Press Retry
MIN FIREPOT TEMP Out of fuel Refi ll hopper
Add handful of pellets to fi repot to prime it
Press Retry
MAX DROP TUBE TEMP Appliance in over-heat condition
Flame height set too high
Components may need cleaning
Confi rm setting matches burning fuel
Adjust fl ame height
Clean the fi rebox, heat exchanger, convec-
tion blower, fi repot and ash pan
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 ashpan is empty, check for a jam. Use a
screw driver and fi rmly push in the fi repot
fl oor holes and fl ex spring and push toward
home to release jam
Replace switch
Reconnect linkage
SCREEN GOES BLANK Static discharge or nearby lightning or
Electric fast transients at the input mains
Wait 25 seconds and press any key to
refresh the screen.
Hopper lid not closed all the way
Switch is out of adjustment (auger will not
function)
Close the lid. If that didn’t work replace the
switch
Adjust or replace switch
Firebox door is not latched properly Adjust or replace door switch
Out of fuel Check the fuel level, if OK the switch may be
out, replace switch