What is the Worcester Bosch boiler C7 fault / error code?
Answered by John Bennett Heating Limited
20th April 2020
John Bennett Heating Limited answered the question "What is the Worcester Bosch boiler C7 fault / error code?"
This is the boiler detected that the fan is not running during the start up process. Could be a number of possibility here but will more than likely be either the fan, fan harness or possible printed circuit board. Call a gas engineer and he will be able to test this to confirm the broken part.