🚨 Lennox Error Codes
| Code | Description | Severity |
|---|
| 201 |
Limit Switch Open |
critical
|
| 227 |
No Flame Sensed |
critical
|
| 270 |
High Pressure Switch Open |
critical
|
| 271 |
Low Pressure Switch Open |
critical
|
| 292 |
Compressor Lockout |
critical
|
| E201 |
Control Self-Diagnostics Failure |
high
|
| E225 |
Roll-Out Switch Open |
critical
|
| E227 |
External Low Voltage Short |
medium
|
| E228 |
Blocked Vent/Pressure Switch |
high
|
| E250 |
Ignition Failure / No Flame Detected |
critical
|
| E269 |
Limit Switch Circuit Lockout |
critical
|
| E270 |
High Limit Switch Open |
high
|
View all Lennox error codes →