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, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3633
Experience:  Gas cooker specialist
46681511
Type Your Appliance Question Here...
Andrew Smith is online now

POTTERTON KINGFISHER BOILER My boiler will fire up on central

Resolved Question:

POTTERTON KINGFISHER BOILER
My boiler will fire up on central heating but, if I DEMAND DOMESTIC HOT WATER ONLY it will not fire up. I have changed the cylinder thermostat as it seemed to have an intermittent fault. The 3 way valve was sluggish in operation so I have changed this also. I am thinking it may be the boiler controller unit. hope you can assist
Submitted: 3 years ago.
Category: Appliance
Expert:  Plumberpro replied 3 years ago.
Plumberpro :

Hi . do you have a multi Meter?

Plumberpro :

If you have replaced the programmer, cyl stat and motorised valve , then just need to confirm the wiring with you if that's ok

Expert:  Andrew Smith replied 3 years ago.
Can you confirm the whole 3 port valve has been swapped and not just the head?It sounds like everything was wired correctly if it was working but just slow - this is normally caused by grit and sludge in the system and especially around the 3 port valve
Andrew Smith, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3633
Experience: Gas cooker specialist
Andrew Smith and other Appliance Specialists are ready to help you