EN
Troubleshooting Guide
Problem
Possible Cause
Solution
Heater fires, but Main PCB shuts
heater off after a short period of time.
Lamp is flickering, and LED display
shows “E1”.
1. Incorrect pump pressure
2. Dirty Input, Output or Lint Filter
3. Dirty Fuel Filter
4. Nozzle is Dirty
5. Photocell lens is Dirty
6. Photocell not installed properly
7. Photocell Defective
8. Improper electrical connection between
Main PCB and Photocell.
1. Adjust Pump Pressure (Page 8)
2. Clean/replace Air Filter (Page 6)
3. Clean/replace Fuel Filter (Page 7)
4. Clean/replace Nozzle (Page 7)
5. Clean/replace Photocell (Page 7)
6. Adjust Photocell position (Page 7)
7. Replace Photocell (Page 7)
8. Check wiring connections (See Wiring
Diagrams, Page 8)
Heater will not operate, or motor runs
for short time. Lamp flickers and LED
display
shows “E1”.
1. No kerosene in fuel tank
2. Incorrect pump pressure
3. Corroded Spark Plug or incorrect plug gap.
4. Dirty Fuel Filter
5. Dirty Nozzle
6. Moisture in Fuel/Fuel Tank
7. Improper electrical connection between
Transformer and Circuit Board
8. Ignitor Wire not connected to Spark Plug
9. Defective Ignitor
1. Fill tank with fresh kerosene
2. Adjust Pump Pressure (Page 8)
3. Clean/replace Spark Plug (Page 7)
4. Clean/replace Fuel Filter (Page 7)
5. Clean/replace Nozzle (Page 7)
6. Rinse out fuel tank with clean fresh
kerosene (Page 6)
7. Inspect all electrical connections. See
Wiring Diagrams (Page 8)
8. Re-attach Ignitor wire to Spark Plug
(Page 7)
9. Replace Ignitor
Fan does not operate when heater is
plugged in and Power Switch is in the
“ON” position. The lamp is flickering or
on and LED Display shows “E1” or
“E2”.
1. Thermostat is set too low
2. Broken electrical connection between
Main PCB and motor
1. Rotate thermostat to a higher setting
2. Inspect all electrical connections. See
Wiring Diagrams (Page 8)
Poor Combustion and / or excess soot
production
1. Dirty Input, Output or Lint Filter
2. Dirty Fuel Filter
3. Poor quality of fuel
4. PSI is too high or too low
1. Clean/replace Air Filter (Page 6)
2. Clean/replace Fuel Filter (Page 7)
3. Be sure fuel is not contaminated or old
4. Use proper pressure (Page 8)
Heater does not turn on and the lamp
is not lit
1. Temperature limit sensor has overheated
2. No electrical power
3. Fuse Blown
4. Improper electrical connection between
Temperature Limit Sensor and Circuit Board
1. Push Power Switch to “OFF” and allow
heater to cool for 10 minutes. Push Power
Switch to back to “ON”
2. Check power cord and extension cord
to insure of proper connection. Test power
supply
3. Check/replace Fuse
4. Inspect all electrical connections.
Wiring
Diagrams (Page 8)
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