Troubleshooting E2 Fault Code on Advent AC Thermostat
Updated 10/30/2025 | Published 10/15/2025
Question:
e2 fault code on advent rv a/c unit from tstat
asked by: Jeremy
0
Expert Reply:
Hey Jeremy, thanks for reaching out!
For the E2 fault code on your Advent Air AC means you have an Indoor Coil Temp Sensor Defect.
To get this taken care of you need to check the wires and also make sure that the sensor is in the right location (between the condenser fins).
Let me know what you end up finding - I'd be interested to know if something was just needing to be connected a little better or if we need to get something replaced for you.
expert reply by:
Jon G
0
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Jon G.
10/30/2025
Hey Jeremy, what did you find when you checked the wiring and sensor placement on your Advent Air AC? It’d be great to know if reconnecting things cleared the E2 fault. Your update could help others seeing the same error.