Hot water fine from boiler to all taps , but central heating not working , is fireing up for about 30sec then going out ,then firing up again after about 3-4min and so on , first rad hot , 2nd warm but cold else where , pump working can hear it and feel it pushing the water in the pipes in the hall coming from upstais. On advice have changed PCB and water flow sensor, but still the same .Any ideas All help and advice grateful
Saunier Duval thernaclassic f24e
- Thread starter robsm
- Start date
Sponsored Links
Its an unusual fault for one of these, but I would suspect the diverter valve is stuck in hw mode. Could be the head or the body or both. You can take the head off to check its movement, and check the pin for free movement, should push in and spring back.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
