e3.2
Open Pressure Switch, 1st Stage
This code typically points to
- 1st-stage pressure switch open
- Venting fault
- Inducer fault
Next checks to confirm
- Verify inducer operation
- Inspect venting/condensate path
- Verify pressure switch closure
Escalation
Heat sequence interrupted until switch state correct
Reset behavior
Clears when pressure switch closes correctly.
Urgent
Fix now