www.desatech.com
120193-01A
17
REMEDY
1..Check. voltage. to. electrical.
outlet.. If. voltage. is. good,.
check.heater.power.cord.for.
breaks
2..Adjust. thermostat. to. higher.
setting
3..Wait.for.ambient.temperature.
to.decrease
4..Replace.motor..See.
Motor and
Blower Assembly
,.page.13
1..Repeat. installation. and. op-
eration. instructions.. See.
Installation
,. page. 10. and.
Operation
,.page.11
2.
. A).Check.ignitor.wire..Tighten.
or.reattach.loose.ignitor.wire.
B) Assure gap between ignitor
electrode.and.burner.deck.is.
0.13"/0.15".(3.3/3.8.mm)..Do.
not.bend.electrode..Doing.so.
may.cause.it.to.break
. C). Replace. ignitor. elec-
trode.. See.
Replacing Ig
-
nitor
,.page.15
. D). Replace. spark. trans-
former..See.
Replacing DSI
Control
,.page.15
3..Clean.tubing
POSSIbLE CAUSE
1..No.electrical.power.to.heater
2..Thermostat.set.too.low
3..Ambient. temperature. is. too.
high.. Thermostat. is. satis-
fied
4..Defective.motor
1..User.did.not.follow.installa-
tion.or.operation.instructions.
properly
2..No. spark. at. ignitor.. To. test.
for.spark,.follow.step.5.under.
Replacing Ignitor
,.page.15..If.
you.see.spark.at.ignitor,.have.
heater serviced by qualified
service. person.. If. no. spark.
seen:
. A). Loose. or. disconnected.
ignitor.wire
B) Wrong spark gap
C) Bad ignitor electrode
D) Bad spark DSI
3..Air.proving.switch.blocked
ObSERVED FAULT
Fan. does. not. turn. when.
switch(s).1.or.2.are.pressed.
to.ON
Heater.will.not.ignite
TroUBLeSHooTing
WARNING: Never service heater while it is plugged in, connected
to propane supply, operating, or hot. Severe burns and electrical
shock can occur.