Troubleshooting - Desa P324E Owner's Operation And Installation Manual

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
Ignitor will not spark or pilot
will.not.light
Pilot will not stay lit


trouBlesHootING

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. Kinked pilot line
6. Control valve knob is not
opening
7..No. power. to. unit. or. the.
ignition. module. or. power.
transformer is bad
8..Vent. damper. not. fully.
open
1. Loose wiring on thermopile
to.regulator.valve..No.mil-
livolt current is being sent
back.to.regulator
..If. valve. knob. and. wall.
switch are in the ON posi-
tion, probable defective
regulator.valve
3..Vent. damper. not. fully.
open
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REMEDY
1. Check to see if you have
gas supply and that equip-
ment shutoff valve is
opened
..Repeat. lighting. procedure.
several times to purge all
air out of lines. If after re-
peated attempts appliance
does not light, call for quali-
fied service and repair.
3. Remove debris and dirt,
inspect and clean any other
possible obstructions
4. Contact your gas supplier
to check pressure
5. Have a qualified technician
replace.pilot.line
6. Replace control valve (Re-
fer. to. Replacement Parts,
page 20)
7. Check that main power is
on.and.that.all.wire.connec-
tions are made correctly to
ignition model (see Wiring
Diagram, page 21). Check
for 24 VAC at secondary
side of transformer. If 24
VAC is present, and mod-
ule does not operate, have
module replaced, otherwise
have transformer replaced
8..Open. vent. damper. until.
fully. locked. in. the. OPEN.
position
1. Check wiring connections.
Refer. to. wiring. diagram.
shown in Wall Switch In-
stallation, page 11
2. Have a qualified technician
replace.valve
3..Open. vent. damper. until.
fully. locked. in. the. OPEN.
position
108794-01F