Desa VM42P Outdoor Fireplace User Manual


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108795-01N 23
TROUBLESHOOTING
Note: Before troubleshooting the system, make sure the gas shutoff valve is ON. The two most common
causes of a malfunctioning gas appliance are:
1. Loose wiring connections
2. Construction debris clogging the pilot and/or gas control valve filter
OBSERVED PROBLEM
Pilot will not light
Pilot will not stay lit
No gas to burner, although wall
switch and valve are set to the
ON position
Frequent pilot outage
POSSIBLE CAUSE
1. No gas supply or shutoff
valve is OFF
2. Air in gas line
3. Construction debris clog
-
ging pilot orifice
4. Low gas pressure
5. Control valve knob is not on
the PILOT position
6. Kinked pilot line
7. Bad valve
8. Vent damper not fully open
1. Loose wiring on thermopile
to regulator valve. No mil
-
livolt current is being sent
back to regulator
2. If valve knob and wall switch
are in the ON position, proba-
ble defective regulator valve
3. Vent damper not fully open
1. Wall switch wires defective or
too long
2. Thermopile not generating
sufficient voltage
1. Pilot flame may be too
low, causing safety pilot to
“drop out”
2. Improper venting or excessive
blockage
REMEDY
1. Check to see if you have gas
supply
2. Hold regulator control valve
in the PILOT position for 2 to
3 minutes to purge air. If you
smell gas stop and wait for a
few minutes before trying to
light the fireplace
3. Remove debris and dirt, in
-
spect and clean any other
possible obstructions
4. Contact your gas supplier
5. Refer to section on pilot
lighting
6. Have a qualified technician
replace pilot line
7. Replace regulator valve (see
Accessories, page 31)
8. Open vent damper until fully
locked in OPEN position
1. Check wiring connections.
Refer to wiring diagram
shown in Wall Switch Instal
-
lation, page 11
2. Have a qualified technician
replace valve
3. Open vent damper until fully
locked in OPEN position
1. Check electrical connections
2. See Pilot will not stay lit
,
above
1. Clean and adjust pilot flame
for maximum flame impinge
-
ment on thermopile
2. Have the vent system inspect
-
ed, including the termination
cap. Remove any restriction
or obstruction
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