a/3/2 (sub-code 8/0/7) — Heating Circuit 2 Flow sensor Fault (Short/Interruption)

What does a/3/2 mean?

This locking fault indicates that the heating circuit flow sensor for heating circuit 2 has a short circuit, an interrupted connection, or is incorrectly connected or defective. The heating circuit pump 2 will operate based on preset values, and the mixer power is switched off.

• Short circuit in the heating circuit flow sensor contacts for circuit 2.
• Interrupted connection to the heating circuit flow sensor for circuit 2.
• Incorrect installation or wiring of the sensor for circuit 2.
• Defective heating circuit flow sensor for circuit 2.

Click steps to track your progress.

1. 1

   Check the wiring and connections to the heating circuit flow sensor for circuit 2 for any signs of damage or incorrect connection.

2. 2

   Verify the sensor is properly installed and seated.

3. 3

   If the issue persists, contact a qualified service technician to diagnose or replace the sensor.