What It Means
- PA UV Sensor Fault
Lennox Equipment not specified
Lennox Error Code 501
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 501
Priority condition: Service Soon • Ultra-violet (UV) sensor reports a fault for more than 5 minutes or UV sensor does not respond for more than 5 minutes. • Device will not perform any UV lamp life remaining calculations until fault has recovered. Life remaining display shall indicate “-“ while fault exists.
Applicable models & manual sources
- iComfort S30
PA UV Sensor Fault
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.
