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Error code reference
Amana Furnace Error Codes
11 error codes documented with diagnostic procedures.
Have your model number? Get codes specific to your unit.
1 FlashSystem lockout2 FlashesPressure switch stuck closed3 FlashesPressure switch stuck open4 FlashesOpen limit control or thermal protection device5 FlashesOpen rollout control6 FlashesReversed polarity7 FlashesLow flame sense signal8 FlashesPressure switch opened five times during a single call for heat (50A55/HSI-2 controls) or…9 FlashesPrimary or auxiliary limit opened five times during a single call for heat (HSI-2…Continuous FlashingFlame sensed with no call for heatContinuous LightInternal control failure
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Step-by-step tests, expected values, wiring diagram references, and verified part numbers.
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Common questions
How do I find the error code on my Amana Furnace?
Most Amana furnaces show the code directly on the control panel display. If your model has no display, it can be read by entering diagnostic mode with the key sequence for your model. The full procedures include model-specific instructions for reading codes.
Are these codes specific to my model?
The codes here apply broadly to Amana furnaces. Meanings and diagnostic steps can vary by model and production year, so enter your model number for model-specific information and procedures.
What do I do if my code is not listed?
Some codes are model-specific or only appear in diagnostic mode. Enter your model number to get codes specific to your unit, or contact us. We update the database continuously from manufacturer service documentation.
How much does it cost to access the full diagnostic procedures?
A 3-day pass is $9.95 one-time and gives full access to all brands, codes, and procedures. Monthly access is $29/month with unlimited access to everything including Max AI diagnostics.