Honeywell W7340 Economizer Module
Re: Fault Codes / Status Codes
The status LED is visible through a hole in the device cover. A priority-based LED flash sequence indicates a detected fault.
► All pulse counts are based on the number of times the light pulses off.
► In the event of a Communications Failure, the LED pulses on for 0.25 seconds every 2 seconds.
| Pulses | Description |
| 8 | Mixed Air Temperature Sensor Fault |
| 7 | Outdoor Air Temperature Sensor Fault |
| 6 | Outdoor Air Humidity Sensor Fault |
| 4 | Return Air Temperature Sensor Fault |
| 3 | Return Air Humidity Sensor Fault |
| 2 | Indoor Air Quality Sensor Fault |
| 1 | Actuator Fault |