Troubleshooting - Desa 55-F Manuel D'utilisation

WARNING: Never service heater while it is plugged in, connected
to propane supply, operating or hot. Severe burns and electrical
shock can occur.
OBSERVED PROBLEM
Fan does not turn when
heater is plugged in
Heater will not ignite
Heater shuts down while
running
113893-01C

trouBLesHooting

POSSIBLE CAUSE
1. No electrical power to
heater
2. Fan hitting inside of heater
shell
3. Fan blades bent
4. Defective motor
1. User did not follow instal-
lation or operation instruc-
tions properly
2. No spark at spark plug. To
test for spark, follow step
8 under Spark Plug, page
9. If you see spark at spark
plug, have heater serviced
by qualified service person.
If no spark seen:
A) Loose or disconnected
spark plug wire
B) Bad spark plug
C) Bad spark transformer
1. Propane supply may be
inadequate
2. High surrounding air tem-
perature causing thermal
limit device to shut down
heater
3. Restricted air flow
4. Damaged fan
5. Excessive dust or debris in
surrounding area
WARNING: Use only in areas
free of high dust content.
www.desatech.com
REMEDY
1. Check voltage to electrical
outlet. If voltage is good,
check heater power cord
for breaks
2. Adjust motor/fan mount to
keep fan from hitting inside
of heater shell. Bend fan
mount if necessary
3. Replace fan. See Fan,
page 8
4. Replace motor. See Motor,
page 8
1. Repeat installation and
operation instructions. See
Installation, page 4 and
Operation, page 5
2. A) Check spark plug wire.
Tighten or reattach loose
spark plug wire. See Figure
8, page 9 for spark plug
wire location
B) Replace spark plug. See
Spark Plug, page 9
C) Replace spark transform-
er. See Spark Transformer,
page 9
1. A) Refill tank
B) Provide additional and/or
larger tanks. See Propane
Supply, page 4
2. This can happen when running
heater in temperatures above
85° F (29° C). Run heater in
cooler temperatures
3. Check heater inlet and outlet.
Remove any obstructions
4. Replace fan. See Fan,
page 8
5. Clean heater. See Mainte-
nance, page 6
7