Fault Code Lookup

HVAC Sales Master
A108
Leaving air sensor out of range
This code typically points to
  • Sensor resistance out of normal range

Next checks to confirm
  1. Make sure sensor is plugged into air-handler control board

Escalation
Minor severity 0
Reset behavior
Clears when sensor circuit is restored.
Service Soon
Schedule repair
Need deeper detail?
Retrieve the subcode for this platform:
  1. On EcoNet Control Center: Press the Service icon when flashing
  2. Select Current Alarm to view active equipment alarms
  3. Select Alarm History to review past alarms with timestamps
  4. Select Reminders for maintenance notifications
  5. Service-alert items can be reset from the Service screen
  6. Equipment-level alarms clear automatically when the underlying equipment fault is corrected
Source
Rheem RH2T/RHMV Installation Instructions air-handler diagnostic table. LED10 6 flashes.