TradeAssistIQHome

Worcester Bosch Greenstar 4000 System fault 2915

Boiler electr. system fault

Gas boiler

What it means

Boiler electronic system fault (V category) - the fan keeps running after the post purge.

Likely causes

  1. Faulty fan voltage/wiring
  2. Faulty fan power modulation
  3. Defective PCB

Where to start

  1. Create a heat demand to test the boiler's ignition sequence
  2. Check the voltage to the fan and the continuity of the fan harness
  3. Check the power modulation on the fan

The full answer, free

  • How to put it right, step by step
  • The manual page for this fault (page 75), right under the answer
Ask about 2915 freeCreate a free account

Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.

From the Worcester Bosch manual for the Greenstar 4000 System. Check the model on the data plate before you order parts.

Other Worcester Bosch Greenstar 4000 System fault codes