John Deere AC-375LP - Manual (Page 14)

14 Operator’s Manual
Symptom Problem Solution
Fan does not turn when heater
is plugged in.
Heater will not ignite.
No electrical power to heater.
Fan hitting inside of heater shell.
Fan blades bent.
Defective motor.
User did not follow installation or
operation instructions properly.
No spark at ignitor. To test for spark,
see "Service: Ignitor" and follow
step 8. 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 transformer
Check voltage to electrical outlet. If volt-
age is good, check heater power cord
for breaks.
Adjust motor / fan mount to keep fan
from hitting inside of heater shell.
Replace fan.
Replace motor.
Repeat installation and operation
instructions.
a. Check ignitor wire. Tighten or reattach
loose ignitor wire. See "Maintenance:
Spark Transformer" for ignitor wire
location
b. Set gap between ignitor electrode and
nozzle to .13"/.15" (3.3/3.8 mm)
c. Replace ignitor electrode. See
"Maintenance: Ignitor".
d. Replace spark transformer. See
"Maintenance: Spark Transformer".
Troubleshooting
WARNING: HIGH VOLTAGE. NEVER SERVICE SPACE HEATER WHILE IT IS PLUGGED IN,
OPERATING, OR HOT. SEVERE BURNS AND ELECTRICAL SHOCK CAN OCCUR.