Toro - PHP Heat Wagon LVF90A Service Manual

The first step in problem solving is TROUBLE SHOOTING. To assist the tech-
nician, the following troubleshooting chart should be referenced as an aid in
locating the source of the problem.
Problem Possible Cause
Pulsating 1. Low fuel level or unit not level
or uneven 2. Air leak
firing
3. Water in fuel.
4. Low air pressure
5. Nozzle leaking air into oil passage. 5. Replace nozzle seal.
6. Restricted fuel filter
7. Dirty nozzle.
Motor does 1. No power to unit.
not start
2. Defective motor
3. Circuit breaker tripped
4. Loose circuit breaker connections. 4. Check terminals on circuit
5. Defective PCB breaker
Motor runs
slowly/Does 1. Fan obstructed
not turn 2. Low voltage.
3. Tight compressor

Toro

Troubleshooting
SERVICE TROUBLE SHOOTING
Remedy
1. Level unit. Keep tank filled
2. Check air & fuel lines for
leaks. Filter not tight. No
filter gasket.
3. Drain, flush & refill with
clean, water-free fuel.
4. Adjust air pressure. Clean
air filters.
6. Replace fuel filter.
7. Clean/or replace nozzle.
1. Check outlet and fuse
Check power cord for good
contact.
2. Bench test motor, if bench
testing indicates good,
replace motor start relay.
3. Depress reset (button near
power cord)
breaker for good, tight
contact.
5. Replace P.C. breaker.
1. Adjust as required.
2. Check length and size
of extension cord.
3. With unit unplugged, turn
fan by hand. If fan does not
turn freely, perform
Compressor Servicing as
needed.
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