125-OFR-A
TROUBLESHOOTING GUIDE
Problem Possible Cause Solution
Heater fires. but shuts down after a short period of
time.
1. Dirty Fuel Filter.
2. Nozzle Dirty.
3. Photocell Dirty.
4. Photocell not installed properly.
5. Photocell Defective.
6. Improper electrical connection between Circuit
Board and Photocell.
7. Cooling Fan is obstructed
8. Improper pressure.
1. Clean/replace Fuel Filter.
2.Clean/replace Nozzle
3.Clean/replace Photocell.
4.Adjust Photocell position.
S. Replace Photocell,
6. Check wiring connections (See Wiring Diagrams.
Page 111.
7. Check to be sure the cooling fan is not obstructed.
8. Adjust pump pressure.
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