Rheem Renaissance Error A01

Supply Temp Sensor Open

Supply-air temperature input is open circuit.

Check sensor harness connection at board and ohm sensor directly at terminals.

⚠️ Always disconnect power before servicing.

Need the full wiring diagram?

Step 1 is just the start. HVAC Hero reads the full Rheem manual for you.

Free 7-day trial. No credit card required for demo.