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12. TROUBLESHOOTING
12.1 TROUBLESHOOTING GUIDE
Problem Possible Cause Solution
Heater fires, but Main PCB
shuts heater off after a short
period of time. Lamp is
flickering.
1. Incorrect pump pressure. 1. Adjust Pump Pressure
(page 17).
2. Dirty Input, Output or
Lint Filter.
2. Clean/replace Air Filter
(page 15).
3. Dirty Fuel Filter . 3. Clean/replace Fuel Filter
(page 16).
4. Nozzle is Dirty. 4. Clean/replace Nozzle
(page 15).
5. Photocell lens is Dirty. 5. Clean/replace Photocell
(page 16).
6. Photocell not installed
properly.
6. Adjust Photocell position
(page 16).
7. Photocell Defective. 7. Replace Photocell
(page 16).
8. Improper electrical
connection between
Main PCB and Photocell.
8. Check wiring connections
(page 18).
Heater will not operate, or
motor runs for short time.
Lamp flickers.
1. No fuel in fuel tank. 1. Fill tank with fresh
kerosene.
2. Incorrect pump pressure. 2. Adjust Pump Pressure
(page 17).
3. Corroded Spark Plug or
incorrect plug gap.
3. Clean/replace Spark Plug
(page 16).
4. Dirty Fuel Filter. 4. Clean/replace Fuel Filter
(page 16).
5. Dirty Nozzle. 5. Clean/replace Nozzle
(page 15).
6. Moisture in Fuel/Fuel Tank. 6. Rinse out fuel tank with
clean fresh kerosene.
7. Improper electrical
connection between
Transformer and Circuit
Board.
7. Inspect all electrical
connections. See Wiring
Diagrams (page 18).
8. Ignitor Wire not connected
to Spark Plug.
8. Re-attach Ignitor wire to
Spark Plug (page 16).
9. Defective Ignitor. 9. Replace Ignitor.
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