Error Code: EH 60 – Indoor Room Temperature Sensor (T1) Error

Error Code: EH 60 – Indoor Room Temperature Sensor (T1) Error

What this means:
The system has detected that the T1 sensor, which monitors the room temperature, is either open-circuited or short-circuited. This triggers an error when the sensor’s voltage drops below 0.06V or rises above 4.94VTS23.

Try this first (quick reset):

1. Turn off the power to the system.

2. Wait 2 minutes.

3. Turn the system back on and check the display.

• If the error clears — it may have been a temporary signal issue.

• If the error remains — proceed with sensor testing.

Next steps (for technicians):

1. Check the wiring between T1 sensor and PCB:

   • If not properly connected → reseat or repair the wires.

2. Measure the resistance of the T1 sensor:

   • If the resistance is not within range → replace the T1 sensor.

3. If the sensor and wiring are fine but the error persists:

   • Replace the indoor PCB.

What you might need:

• T1 temperature sensor

• Indoor PCB

• Connection wires

Helpful tip:
EH 60 is part of a common group of sensor voltage faults. Always test both voltage and resistance before concluding component failure.

Click here to view the detailed guide.TS23