Desa CB36N Manual De Usuario
www.desatech.com
117437-01D
9
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. No gas supply, or shutoff
valve.is.OFF
..Air.in.gas.line
3..Construction. debris. clog-
ging pilot orifice
4..Low.gas.pressure
5..Kinked.pilot.line
6..Control.valve.is.not.open-
ing
7..No. power. to. unit. or. the.
ignition.module
1..Loose.wiring.on.ignitor.wire.
to. ignition. module. and/
or. poor. ground. to. ignition.
module
or. poor. ground. to. ignition.
module
..Pilot. flame. too. low. to.
sense
1. Pilot flame may be too low
to. sense. flame. causing.
ignition. module. to. shut.
down
ignition. module. to. shut.
down
..Improper. or. restricted.
venting
OBSERVED PROBLEM
Electronic Ignition Models
Only.Ignitor.will.not.spark.or.
pilot.will.not.light
Only.Ignitor.will.not.spark.or.
pilot.will.not.light
Electronic Ignition Models
Only Pilot.will.not.stay.lit
Only Pilot.will.not.stay.lit
Electronic Ignition Models
Only Frequent.outage.of.main.
burner.and.pilot.after.complete.
ignition.sequence
Only Frequent.outage.of.main.
burner.and.pilot.after.complete.
ignition.sequence
REMEDY
1..Check.to.see.if.you.have.gas.
supply.and.that.equipment.
shutoff.valve.is.opened
shutoff.valve.is.opened
..Repeat. lighting. procedure.
several.times.to.purge.all.air.
out.of.lines..If.after.repeated.
attempts. appliance. does.
not light, call for qualified
service.and.repair
out.of.lines..If.after.repeated.
attempts. appliance. does.
not light, call for qualified
service.and.repair
3. Remove debris and dirt, and
inspect.and.clean.any.other.
possible.obstructions
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.31)
page.31)
7..Check. that. main. power. is.
on. and. that. wire. connec-
tions. are. made. correctly.
to. the. ignition. model. (see.
Wiring Diagrams, page 13).
Check. for. 4. VAC. at. the.
secondary.side.of.the.trans-
former. If 24 VAC is present,
and. the. module. does. not.
operate, have the module
replaced. otherwise. have.
the.transformer.replaced
tions. are. made. correctly.
to. the. ignition. model. (see.
Wiring Diagrams, page 13).
Check. for. 4. VAC. at. the.
secondary.side.of.the.trans-
former. If 24 VAC is present,
and. the. module. does. not.
operate, have the module
replaced. otherwise. have.
the.transformer.replaced
1..Check. wiring. connection..
Refer.to.wiring.diagram.(see.
Wiring Diagrams, page 13)
and/or.check.ground.wire.to.
ignition.module
Wiring Diagrams, page 13)
and/or.check.ground.wire.to.
ignition.module
..Clean and adjust pilot burner
and. check. gas. supply. and.
inlet. pressure. to. unit.. Note:.
Have a qualified technician
replace. pilot. assembly. if.
broken.or.corroded
inlet. pressure. to. unit.. Note:.
Have a qualified technician
replace. pilot. assembly. if.
broken.or.corroded
1. Clean and adjust pilot flame
for maximum flame across
sensor.rod
sensor.rod
..Locate.and.correct.all.vent.
conditions.(see.Checking for
Proper Venting, page 10)
Proper Venting, page 10)