DIY Doctor

Main navigation

Boiler cycling

Postby Hightower1978 » Fri Apr 19, 2013 9:28 pm

I have a Potterton Suprima 40 boiler. It recently noticed that when on timer for the hot water it continually fires up and shuts off on a one or two minute cycle. The cylinder thermostat is set at 60 degrees and I have hot water.

However, if I simply select the option for a '1 hour' boost then the cycling does not occur as frequent.

Am I correct in thinking that the pump may play a part in this or is a motherboard issue (this was replaced 1 year ago and I'm fairly sure it wasn't an occurrence prior to this)?

Any ideas would be really helpful and gratefully received.
Rank: Apprentice
Progress to next rank:
Posts: 9
Joined: Thu Mar 01, 2012 12:21 pm


Simply Build It

Postby DIYDoctor2 » Mon May 19, 2014 11:10 am

Potterton's Heatteam section of their website has a great basic boiler check which may help you diagnose the issue with your boiler find them here

To find a qualified heating engineer near you heat over to our Find a Tradesman section for more advice
Rank: Ganger
Progress to next rank:
Posts: 62
Joined: Mon May 19, 2014 9:53 am

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics