How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Andrew Smith Your Own Question
Andrew Smith
Andrew Smith, Engineer
Category: UK Plumbing
Satisfied Customers: 3591
Experience:  Domestic Gas, Commercial Gas, LPG, Unvented Hot Water, Part P Electrical, Commercial Catering
46681511
Type Your UK Plumbing Question Here...
Andrew Smith is online now
A new question is answered every 9 seconds

I have a Worcester 40 CDi boiler and have an F 7 error

Customer Question

Hi, I have a Worcester 40 CDi boiler and have an F 7 error code. Is this something I can sort myself?
Submitted: 1 year ago.
Category: UK Plumbing
Expert:  Andrew Smith replied 1 year ago.
This is pointing to an electrode or PCB fault, can you confirm the boiler is not leaking and the PCB is wet?
Customer: replied 1 year ago.
Hi Andrew, the boiler is dry and I have taken the electrodes out, cleaned them and re-fitted them. The boiler is now working. Thanks for the reply.
Customer: replied 1 year ago.
For now anyway, going to get an engineer out on Monday.
Expert:  Andrew Smith replied 1 year ago.
No problem, sometimes an F7 faulkt can be sorted by cleaning the connection to the electrode at bothe ends (including the PCB)
Expert:  Andrew Smith replied 1 year ago.
Did you get this sorted?
Customer: replied 1 year ago.
Yes thank you. After cleaning the electrodes, the error code went away. When the engineer came on the Monday, he confirmed that they were clean and will have solved the error. I know I should have waited for an engineer but we have a baby and without hot water is a nightmare. All sorted now!
Expert:  Andrew Smith replied 1 year ago.
Ok great news.

Related UK Plumbing Questions