P2 - 4 red flashes, 1 green flash — Liquid pipe thermistor fault (TH2)

What does P2 mean?

This fault is related to the liquid pipe thermistor (TH2), indicating it may be disconnected, have an open circuit, or a short circuit.

• Liquid pipe thermistor (TH2) disconnected
• TH2 has an open circuit
• TH2 has a short circuit
• Faulty thermistor or wiring

Click steps to track your progress.

1. 1

   Ensure the TH2 thermistor is properly connected.

2. 2

   Examine the wiring connected to TH2 for damage or loose connections.

3. 3

   Measure the resistance of the TH2 thermistor (consult manual for values).

4. 4

   Replace the TH2 thermistor if found to be defective.