Lennox G60UHV(X) Error Codes

Equipment type not specified · Ducted Heating

• 1 + 2 Low flame current -- run mode.
• 1 + 3 Flame sensed out of sequence -- flame still present.
• 2 + 3 Low pressure switch failed open.
• 2 + 4 Low pressure switch failed closed.
• 2 + 5 High pressure switch failed open.
• 2 + 6 High pressure switch failed closed.
• 2 + 7 Low pressure switch opened during ignition trial or heating demand.
• 3 + 1 Limit switch open.
• 4 + 1 Watchguard -- Exceeded maximum number of retries.
• 4 + 2 Watchguard -- Exceeded maximum number of retries or last retry was due to pressure switch…
• 4 + 3 Watchguard -- Exceeded maximum number of retries or last retry was due to flame failure.
• 4 + 5 Watchguard -- Limit remained open longer than three minutes.
• 4 + 6 Watchguard -- Flame sensed out of sequence; flame signal gone.
• 4 + 7 Ignitor circuit fault -- Failed ignitor or triggering circuitry.
• 4 + 8 Low line voltage.
• 5 + 1 Hard lockout -- Rollout circuit open or previously opened.
• 5 + 2 Control failed self check, internal error (control will restart if error recovers).
• 5 + 3 No Earth ground (control will restart if error recovers).
• 5 + 4 Reversed line voltage polarity (control will restart if the error recovers).
• 5 + 6 Low secondary (24VAC) voltage.
• Heartbeat Normal operation - signaled when heating demand initiated at thermostat.
• Pulse Power on - Standby.

Reference only. Confirm against the manual for your exact model. Data release 105f66ecb9e96e5dc473025d.