Model reference
Lennox ML180DF070XP36A
Furnace
1 document11 error codes1 service mode
Available documentation
Service Manual
- Service Literature ML180DF(X)27 pg
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- Step-by-step diagnostics from the service manual
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Error codes (11)
CodeMeaning
1 FlashFlame present with gas valve de-energized.2 FlashesPressure switch closed with combustion air inducer de-energized.3 FlashesPressure switch open with combustion air inducer energized.4 FlashesPrimary limit switch open.5 FlashesRollout switch open.6 FlashesPressure switch cycle lockout.7 FlashesLockout, burners fail to light.8 FlashesLockout, burners lost flame too many times.9 FlashesLine voltage polarity incorrect.LED OffNo power to control or control hardware fault detected.LED OnNormal operation.Service modes (1)
- Diagnostic Code RecallPress the push button switch on the integrated control for less than 5 seconds
Full entry steps, exit procedures, and test sequences are available in Max.
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