Troubleshooting - MHSC LEXINGTON LX32DV Installation And Operating Instructions Manual

Direct vent gas fireplace
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tRouBLeShootING

turn appliance oFF and allow to cool before
servicing.
only qualified service person should service
and repair the heater.
oBSeRVeD pRoBLeM
Spark ignitor will not light the
pilot after repeated pressing of
spark ignitor.
Pilot will not stay lit.
Burner will not light when valve
and burner switch are both on.
Glass fogs up
Blue flames
Sooting
51D0528
poSSIBLe cAuSe
1. Battery needs replacing
2. Defective ignitor
3. Misaligned spark electrode
4. Bad wire.
1. Defective thermocouple.
Loose thermocouple
2. Air in gas line
3. No gas
1. Defective switch
2. Defective thermopile
3. Thermostat set too low/defective
1. Normal condition
1. Normal during start up
1. Flame impingement
LX Series Direct Vent Gas Fireplace
Note: All troubleshooting items are listed in
order of operation.
ReMeDy
1. Replace battery
2. Check connections to ignitor. Replace
ignitor if ignitor connections are good,
but there is no spark.
3. Check for spark arcing from the elec-
trode to pilot. Adjust and retighten.
4. Replace with new wire.
1. A. Check for proper connection of
thermocouple to rear of valve.
B. Check thermocouple output.
2. Bleed line. Contact dealer
3. Check shutoff valve and gas supply
(LPG tank)
1. Check switch connections. Jump
wires at switch.
2. A. Check thermopile output.
B. Check connections to valve. Con-
tact dealer.
3. Turn up thermostat to start unit.
Check thermostat connections.
1. Allow appliance to warm up. Glass
will clear. Additives in the gas may
dirty glass. Clean glass when cool.
1. Flames will yellow as appliance
heats up. Adjust rock wool placement
per instructions.
1. Check log position. Open shutters to
increase primary air.
39

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