Thermostat Showing Error 37 in Raleigh: What Does It Mean?
Raleigh · November 2026 · Jeorell · From our service records
What the customer reported
A Raleigh homeowner reported that the thermostat showed Error 37 and said to contact the dealer.
What we found and did
Jeorell found that code 37 (E37) means the outdoor inverter control system is detecting a fault communicating with or controlling the outdoor fan circuit. He verified all wiring was tightened properly and secured. He then cleared the code and tested operations.
Result
The system was heating properly at the time of departure.







