EH: Outdoor suction temperature sensor fault

EH means the outdoor suction temperature sensor is at fault. Suction temperature is a refrigerant-line reading on the outdoor unit, not the temperature in the room. The code is displayed indoors. The owner step on the sheet is to record EH, switch the breaker off for a few minutes, and switch it back on. If EH returns, call support with the code and the model number. The repair is pro-only. Leave the sensor and the suction line alone. A licensed HVAC technician tests that circuit. Repeated breaker resets will not replace a failed sensor.

What to do

1. 1Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.

Sensor, board, fan motor and refrigerant repairs need a licensed HVAC technician. Have your model number and purchase date ready when you call.