Hello , I have a king pellet stove #5510 we where having problems with the room fan barely blowing . We replaced it and now the stove will not kick on the room fan. I can’t put the old one back on because the bearing in it is broken. I replaced the thermistor and nothing has changed. what else could be the issue? Stove does a wheezing or breathing sometimes when we start it up. I was told that has nothing to do with the room fan and is the exhaust fan . Other wise starts up fine runs gets a fire going but fan doesn’t kick on. Drops pellets but not a lot .
King pellet stove trouble shoot
- Thread starter CatrinaHaz
- Start date
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ARC
Minister of Fire
Does the blower work (#2) in test mode? Also note #7 Flue gas Thermistor Test,
PERFORMING AN INITIAL TEST
This test is used at the factory where the stoves are assembled to test the functionality of the control and the stove
before the unit is shipped. To perform this test, press and hold the OFF and AUGER DELAY buttons simultaneously for
3 seconds. To advance through the test, press any key unless otherwise noted in the test step.
1. Exhaust Fan Output Test – The display will show “drft”. The exhaust fan is turned on full then reduced to a level just
above the typical minimum pressure switch setting. The ON LED indicates whether the pressure sensor is detected.
If the pressure switch is not detected, the fan ramps to full on for two seconds then returns to the previously established
level if the pressure switch closes. If the Draft Fan Fuse is not blown and the fuse detection circuit is functioning,
the Draft Fan LED will be lit and the other three top row LEDs will be off.
2. Room Fan Output Test - The display will show “rfan”. The room fan is turned on full. If the Room Fan Fuse is not
blown and the fuse detection circuit is functioning, the Room Fan LED will be lit and the other three top row LEDs
will be off.
3. Ignitor Output Test - The display will show “ignt”. The ignitor motor is turned on full. If the Ignitor (AUX) Fuse is not
blown and the fuse detection circuit is functioning, the Aux LED will be lit and the other three top row LEDs will be off.
4. Auger Output Test - The display will show “augr”. The auger motor is turned on full. If the Auger Fuse is not blown
and the fuse detection circuit is functioning, the Heat Range LED will be lit and the other three top row LEDs will be off.
5. Hopper Switch Test – The display will show “hppr”. The “ON” LED is lit. If the hopper switch is open (lid is open),
the “HEAT RANGE” LED will turn on. If the lid is closed, the “HEAT RANGE” LED will be off.
6. Thermostat Input Test – The display will show “stat”. If the thermostat input is closed, the ON LED will turn on,
otherwise it will be off.
7. Flue gas Thermistor Test – The display will show the flue gas temperature in degrees F.
8. AC Frequency Test - Displays the measured AC Frequency in hertz (59-60) followed by the letter ‘H’.
Watchdog Reset – The watchdog timer is tested to ensure that the board can be reset. The message “BYE” is
displayed until the watchdog resets the board.
PERFORMING AN INITIAL TEST
This test is used at the factory where the stoves are assembled to test the functionality of the control and the stove
before the unit is shipped. To perform this test, press and hold the OFF and AUGER DELAY buttons simultaneously for
3 seconds. To advance through the test, press any key unless otherwise noted in the test step.
1. Exhaust Fan Output Test – The display will show “drft”. The exhaust fan is turned on full then reduced to a level just
above the typical minimum pressure switch setting. The ON LED indicates whether the pressure sensor is detected.
If the pressure switch is not detected, the fan ramps to full on for two seconds then returns to the previously established
level if the pressure switch closes. If the Draft Fan Fuse is not blown and the fuse detection circuit is functioning,
the Draft Fan LED will be lit and the other three top row LEDs will be off.
2. Room Fan Output Test - The display will show “rfan”. The room fan is turned on full. If the Room Fan Fuse is not
blown and the fuse detection circuit is functioning, the Room Fan LED will be lit and the other three top row LEDs
will be off.
3. Ignitor Output Test - The display will show “ignt”. The ignitor motor is turned on full. If the Ignitor (AUX) Fuse is not
blown and the fuse detection circuit is functioning, the Aux LED will be lit and the other three top row LEDs will be off.
4. Auger Output Test - The display will show “augr”. The auger motor is turned on full. If the Auger Fuse is not blown
and the fuse detection circuit is functioning, the Heat Range LED will be lit and the other three top row LEDs will be off.
5. Hopper Switch Test – The display will show “hppr”. The “ON” LED is lit. If the hopper switch is open (lid is open),
the “HEAT RANGE” LED will turn on. If the lid is closed, the “HEAT RANGE” LED will be off.
6. Thermostat Input Test – The display will show “stat”. If the thermostat input is closed, the ON LED will turn on,
otherwise it will be off.
7. Flue gas Thermistor Test – The display will show the flue gas temperature in degrees F.
8. AC Frequency Test - Displays the measured AC Frequency in hertz (59-60) followed by the letter ‘H’.
Watchdog Reset – The watchdog timer is tested to ensure that the board can be reset. The message “BYE” is
displayed until the watchdog resets the board.
We did perform the test last night and the lit came on but we did not hear or see the fan run.
we did not test the flue gas thermistor . How does that relate to the room fan ?
we did not test the flue gas thermistor . How does that relate to the room fan ?
ARC
Minister of Fire
Blower should only come on after stove gets to a preset temperature, if thermistor is not working or reading correctly fan would not come on. But that is not the problem as it did not run blower in test mode.
I would trace the White/neutral wire from the blower to the rear plug make sure it is not pinched and you have good connection at blower, check the spade connector really well. You can also trace the black wire from blower it will turn to blue wire before it gets to the control board, but if it was pinched it would blow a fuse.
Step 3 If you have a old lamp cord you could add spade connectors, attach to blower and test it while it is still installed.
From trouble shooting guide:
Room fan not coming on
1 RUN TEST ON UNIT if it operates in test mode check the thermistor reading, and make
sure the thermistor is connected to the board.
2 If it does not come on in test mode check that the wires are secure and there is no
damage to the wires.
3 Have them connect direct power to the blower If it still does not operate the blower
will need to be replaced.
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