Troubleshooting - Desa CB36N Installation And Owner's Operation Manual

WARNING: Turn off heater and let cool before servicing. Only a
qualified service person should service and repair heater.
CAUTION: Never use a wire, needle or similar object to clean
ODS/pilot. This can damage ODS/pilot unit.
Note: All troubleshooting items are listed in order of operation.
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
Manual Ignition System
Only. When. ignitor. button. is.
pressed, there is no spark at
ODS/pilot
Manual Ignition System Only.
When ignitor button is pressed,
there.is.spark.at.ODS/pilot.but.
no.ignition
6

TROUBLESHOOTING

POSSIBLE CAUSE
1..Ignitor.electrode.not.con-
nected.to.ignitor.cable
..Ignitor. cable. pinched. or.
wet
3. Piezo ignitor nut is loose
4..Broken.ignitor.cable
5. Bad piezo ignitor
6..Ignitor. electrode. positioned.
wrong
7..Ignitor.electrode.broken
1..Gas. supply. turned. off. or.
equipment. shutoff. valve.
closed
..Control.knob.not.in.PILOT.
position
3..Control.knob.not.pressed.
in.while.in.PILOT.position
4..Air. in. gas. lines. when. in-
stalled
5..Depleted.gas.supply.(pro-
pane/LP.only)
6..ODS/pilot.is.clogged
7..Gas.regulator.setting.is.not.
correct
www.desatech.com
REMEDY
1..Reconnect.ignitor.cable
..Free.ignitor.cable.if.pinched.
by. any. metal. or. tubing..
Keep.ignitor.cable.dry
3..Tighten nut holding piezo
ignitor. to. base. panel. of. log.
set.. Nut. is. located. behind.
base.panel.
4..Replace.ignitor.cable
5. Replace piezo ignitor
6..Replace.pilot.assembly
7..Replace.pilot.assembly
1..Turn.on.gas.supply.or.open.
equipment.shutoff.valve
..Turn.control.knob.to.PILOT.
position
3..Press.in.control.knob.while.
in.PILOT.position
4..Continue. holding. down.
control.knob..Repeat.ignit-
ing. operation. until. air. is.
removed
5..Contact. local. propane/LP.
gas.company
6..Clean.ODS/pilot.(see.Clean-
ing and Maintenance, page
4). or. replace. ODS/pilot.
assembly
7..Replace.gas.regulator
117437-01D