www.desatech.com
121231-01B
7
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 installa-
tion or operation instructions
properly
2. No spark at spark plug. To
test for spark, follow steps 1
to 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
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 9
4. Replace motor. See
Motor
,
page 8
1. Repeat installation and op-
eration instructions. See
Installation
, page 5 and
Op-
eration
, page 6
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
OBSERVED PROBLEM
Fan does not turn when
heater is plugged in
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.
MaintenanCe
WARNINGS
• Never service heater while it
is plugged in, connected to
propane supply, operating or
hot. Severe burns and electri-
cal shock can occur.
• Keep heater clear and free
from combustible materials,
gasoline and other flammable
vapors and liquids.
• Do not block the flow of com
-
bustion or ventilation air.
1. Keep heater clean. Clean heater annually
or as needed to remove dust and debris. If
heater is dirty or dusty, clean heater with
a damp cloth. Use household cleaners on
difficult spots.
2. Inspect heater before each use. Check
connections for leaks. Apply mixture of
liquid soap and water to connections.
Bubbles forming show a leak. Correct all
leaks at once.
3. Inspect hose/regulator assembly before
each use. If hose is highly worn or cut,
replace with hose specified by manufac
-
turer.
4. Have heater inspected yearly by a quali-
fied service agency.
5. Keep inside of heater free from combus-
tible and foreign objects. Remove motor
and other internal parts if needed to clean
inside of heater (see
Service Procedures
,
page 8).
6. Clean fan blades each season or as
needed (see
Fan
, page 9).
