Troubleshooting – John Deere AC-375LP User Manual

Page 14

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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.

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