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: 3629
Experience:  Domestic Gas, Commercial Gas, LPG, Unvented Hot Water, Part P Electrical, Commercial Catering
Type Your UK Plumbing Question Here...
Andrew Smith is online now
A new question is answered every 9 seconds

My ultra glow boiler is showing f22, well l release the 2

Customer Question

my ultra glow boiler is showing f22, well l release the 2 valves, pressure is not going up,,but water over flowing
Submitted: 12 months ago.
Category: UK Plumbing
Expert:  Andrew Smith replied 12 months ago.

If you are discharging water through the PRV, then it will not hold pressure until it has been replaced.

This is the reason your boiler is not holding pressure