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Never attempt to service heater while it is plugged in, connected to propane
supply, operating or hot. Severe burns and electrical shock can occur.
SYMPTOM
Fan does not turn
when heater is
plugged in.
Heater will not
ignite.
Heater shuts down
while running.
WARNING
Use only in areas
free of high dust
content.
ITEM
Fan
Electrode
WARNING
POSSIBLE CAUSE
No electrical power to heater
Fan blades bent
Defective motor
User did not follow prepara-
tion or operation instruc-
tions properly
No spark at electrode. To test
for spark, follow step 9 un-
der Replacing Electrode,
page 13. 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) Piezo ignitor loose
D) Bad electrode
E) Bad piezo ignitor
F) Bad electronic module
High surrounding air tem-
perature causing thermal
limit device to shut down
heater.
Restricted air flow
Damaged fan
Excessive dust or debris in
surrounding area
HOW OFTEN
Clean every 500 hours of
operation or as needed.
Clean and regap every 500
hours of operation or replace
as needed.
REMEDY
Check voltage to electrical outlet.
If voltage is good, check heater
power cord for breaks.
Replace fan. See Replacing Fan,
Page 13.
Replace motor. See Replacing Motor,
page 12.
Repeat preparation and opera-
tion instructions. See Preparation,
pages 6 & 7 and Operation, pages 7,
8 & 9.
A) Check ignitor wire. Tighten
or reattach loose ignitor wire.
See page 5 for ignitor
wire location.
B) Set gap between ignitor electrode
and target plate to .20" (0.5 cm).
C) Tighten piezo ignitor to base
of heater.
D) Replace electrode. See Replacing
Electrode, page 13.
E) Replace ignitor.
F) Replace electronic module.
This can happen when running
heater in temperatures above
85˚F (29°C). Run heater in cooler
temperatures.
Check heater inlet and outlet.
Remove any obstructions.
Replace fan. See Replacing Fan,
page 13.
Clean heater. See Maintenance,
pages 9 & 10.
HOW TO
See Fan, page 10
See Electrode, page 10
TROUBLE-
SHOOTING
PREVENTIVE
MAINTENANCE
SCHEDULE
Continued
11
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