Fault 30 Code 7 — Mixer temperature sensor (MF) faulty

What does Fault 30 7 mean?

The Worcester Bosch Greenstar CDi Boiler displays Fault 30 with code 7, indicating that the mixer temperature sensor (MF) connected to the IPM is faulty.

• The mixer temperature sensor (MF) is defective
• Damaged wiring to the mixer temperature sensor
• Loose connection of the sensor to the IPM

Click steps to track your progress.

1. 1

   Visually inspect the mixer temperature sensor (MF) and its connections to the IPM.

2. 2

   Check for any signs of physical damage to the sensor or its wiring.

3. 3

   If the sensor is suspected to be faulty, contact a qualified heating engineer for testing and replacement.