What It Means
- ML180UH, ML296UHV: Flame present with gas vavle de-energized.
- ML196UHE: Reverse Line Voltage Polarity or Phasing of 120V power
Lennox Ducted Heating
Lennox Ducted Heating Error Code 1 Flash
Ducted Heating
1 Flash means different things on different Ducted Heating models. Enter your model number to see only your reading, or find your model below.
Causes & actions from Lennox
Flame present with gas vavle de-energized.
Models: ML180UH, ML296UHV
How it shows
- Integrated control red LED: 1 Flash
- integrated control single led: 1 Flash
Flame present with gas vavle de-energized.
Other manual wording
ML180UH
This manual entry does not list further causes or actions.
Applicable models & manual sources
- ML296UHV
Flame present with gas vavle de-en- ergized.
- ML180UH
Flame present with gas vavle de-energized.
Reverse Line Voltage Polarity or Phasing of 120V power
Models: ML196UHE
How it shows
- Integrated control red LED: 1 Flash
This manual entry does not list further causes or actions.
Applicable models & manual sources
- ML196UHE
Reverse Line Voltage Polarity or Phasing of 120V power
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
