What It Means
- Reverse Line Voltage Polarity
- O23-5, OF23-5, OHR23-5: Cad cell resistance 0 - 400Ohms
Lennox Ducted Heating
Lennox Ducted Heating Error Code 1
Ducted Heating
1 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
Reverse Line Voltage Polarity
7 models
EL195UH, EL195UHNE, EL196UHE, ML180UHE, ML180UHV, ML193UHE, ML196UHE
How it shows
- Integrated control red LED: 1
This manual entry does not list further causes or actions.
Applicable models & manual sources
- EL195UH
Reverse Line Voltage Polarity
- EL195UHNE
Reverse Line Voltage Polarity
- EL196UHE
Reverse Line Voltage Polarity
- ML180UHE
Reverse Line Voltage Polarity
- ML180UHV
Reverse Line Voltage Polarity
- ML193UHE
Reverse Line Voltage Polarity
- ML196UHE
Reverse Line Voltage Polarity
Cad cell resistance 0 - 400Ohms
Models: O23-5, OF23-5, OHR23-5
Oil furnace (indoor)
How it shows
- oil r7184b cad cell test led: 1 (led1: flashing ×1)
Cad cell resistance: 0 - 400 Ohms
Applicable models & manual sources
- O23-5
Cad cell resistance 0 − 400Ohms
O23-5, OHR23-5, OF23-5
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.
