Lennox ML296UHV Error Codes

Equipment type not specified · Ducted Heating

• 1 Flash Flame present with gas vavle de-energized.
• 2 Flashes Pressure switch closed with combustion air inducer de-energized.
• 3 Flashes Pressure switch open with inducer energized
• 4 Flashes Primary limit, secondarylLimit, or rollout switch open
• 5 Flashes Not used
• 6 Flashes Pressure switch cycle lockout.
• 7 Flashes Lockout, burners fail to light.
• 8 Flashes Lockout, burners lost flame too many times.
• 9 Flashes Line voltage polarity incorrect.
• Green LED Flashing High heat demand, high pressure switch not closed
• Green LED Off No demand for high heat
• Green LED On High heat demand, operating normally
• LED Off No power to control or control hardware fault detected.
• LED On Normal operation.

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