Troubleshooting
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Manual test run of heater
- Turn WATER PUMP switch (4) “ON”
- Turn MOTOR switch (5) “ON”
- Push and hold FUEL SOLENOID VALVE button (7) “ON”
(start fuel flow to combustion chamber)
- Push and hold IGNITION SPARK COIL button (6) “ON”
(starts electrodes sparking) until combustion has taken place.
Results:
- LED (3) lights and combustion achieved
- operation normal
- Combustion achieved but no LED (3) light
- check flame detector
- Combustion not achieved and no LED (3) light
- check fuel nozzle
- check fuel pressure
- check for blocked fuel lines (dirt or ice)
- check ignition electrodes for damage and
set gap
- Heater should now be in heating mode and will continue to run until you release the fuel solenoid valve button (7) which
stops fuel flow and extinguishes flame immediately. Allow heater to continue running (for cool down) approximately 30
seconds and then turn WATER PUMP switch (4) and MOTOR switch (5) “OFF”.
- If manual test run has been successfully completed, turn heater switch/timer “OFF”, remove the tester and re-connect the
control unit. Once done, turn switch/timer “ON”; if heater or a heater component does not respond, control unit is
defective; replace control unit and re-test heater.
NOTE
Hold IGNITION SPARK COIL button
(6) “ON” until FLAME DETECTOR
LED (3) lights or combustion is
heard, then release; in any case do
not hold button on for more than
15 seconds.
NOTE
If flame does not stop when the
FUEL SOLENOID VALVE button (7) is
released, turn MOTOR switch (5)
“OFF” to stop heater. Check
solenoid valve.
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