th-01 — Sensor fault, fluid entering water heat exchanger

What does th-01 mean?

The temperature sensor for the fluid entering the water heat exchanger is faulty. The unit will shut down until the sensor is repaired or replaced.

• Thermistor sensor is defective.
• Wiring to the sensor is damaged.
• Sensor connection is loose.

Click steps to track your progress.

1. 1

   Check the wiring and connection of the fluid entering sensor.

2. 2

   Verify the sensor's resistance or temperature reading against a known value.

3. 3

   Replace the sensor if it is found to be defective.

4. 4

   Reset the alarm after the sensor is fixed or replaced.