Answer
Dec 02, 2025 - 02:44 AM
A. Listen for the blower during startup “test” or high-heat
Some King/KP control boards have a test mode or will ramp through fans on startup. If you bump the heat setting up and never hear the room blower at all, even briefly, that points more toward:
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Bad fan
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Bad wiring
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Bad board
If the blower sometimes runs or works after a full cool-down, think dirty blower / overheating / failing motor.
B. Full cleaning (better than “quick vacuum”)
If it hasn’t had a real cleaning this season, do this before you replace parts:
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Unplug stove.
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Pull side/rear panels if accessible.
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Clean:
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Convection blower blades and housing
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Exhaust blower housing
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Behind any baffles / plates that cover ash traps
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The flue / vent as far as you can access
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Make sure all air passages around the heat exchanger are open.
A very dirty convection blower can both:
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Overheat and shut down, and
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Prevent proper heat from reaching the snap disc.
If after a thorough clean the blower still never kicks in, move on.
C. Quick blower motor test (only if you’re comfortable)
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Unplug the stove.
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Find the convection blower (room air blower).
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Check the wire connector from board to blower – make sure it’s fully seated, no burnt pins.
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Spin the blower wheel by hand:
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It should turn freely, not gritty, not stiff, no scraping.
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If it’s stiff or noisy, that motor is suspect.
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