What It Means
- OD System Pressure Trip
Lennox Equipment not specified
Lennox Error Code 402
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 402
Priority condition: Service Soon • Either the discharge or suction pressure level is out-of-limits, or the compressor has overloaded. • Check discharge or suction pressure.
Applicable models & manual sources
- iComfort S30
OD System Pressure Trip
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.
