York Gas Furnaces: P3URC
Re: Diagnostic/Lockout Codes
This York gas furnaces has a control board inside the furnace blower compartment that will flash a diagnostic code that shows the operating status of the furnace.
Diagnostic Codes: | ||
Steady On Red | Control failure |
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Rapid Red | Low flame signal |
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1 Red | Ignition lockout |
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2 Red | Pressure switch stuck closed |
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3 Red | Pressure switch stuck open |
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4 Red | Aux or Spill Limit Open |
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5 Red | Rollout switch open / open fuse |
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6 Red* | Pressure switch opened 4 times |
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7 Red* | Ignition lockout due to 3 retries |
|
8 Red | Flame signal lost 5 times |
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9 Red | Grounding or line polarity fault |
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11 Red | No or improper ground | |
* Code 6 & 7 will auto reset after 1 hour. |