boiler problems

  1. T

    Drayton Zone Valve Actuator ZA6 not reading Danfoss Programmer??

    Hi Everyone, Very new here and made an account for some advice and guidance. Here's hoping you can help! I have a Worcester Greenstar 40cdi system boiler that is hard wired to a Danfoss FP715Si 2-Channel programmer for heating and hot water. The boiler has a Danfoss HPA2 actuator and a...
  2. S

    Vaillant eco tec plus 837 continuously 'loading'...

    Hi, Any heating engineers able to help? Apologies if previously covered. I did try and search. Just arrived back from holiday and our boiler won't start up. The screen won't power up and is just continuously flashing 'loading'. It doesn't get as far as showing any error codes. It sounds like...
  3. D

    Main combi 30HE very odd problem

    Hi Guys, i wondered if anyone would be able to shed some light on this problem, i have a Main combi 30HE that i have had for the last 7 years, but just lately the diverter valve stopped working (no movement of either pin) so i got a brand new one along with a new plate heat exchanger, while it...
  4. S

    Salus iT500RX Receiver problem

    Anyone kmow anything about Salus iT500RX Receivers? My one is showing no power anymore and yet nothing has tripped on the board, which means it's not currently talking to my megaflow boiler. Any pointers? As probably guessed, I'm neither an electrician or plumber, lol! Cheers in advance
  5. G

    Glow Worm Flexicom 24hx Boiler F5 & F22 Faults

    Hi All, I have a Flexicom 24hx Boiler about 6 years old, Been fine till about 2 months ago, then one morning it didn't come on, F22 Code. I re-set it and all was fine. Then 2 days later the same, and then F5 then off again, this went on for about four or 5 days. I called a Boiler company and...
  6. S

    Capillary thermostat not picking heat from Cylinder

    I have a Boilermate ii where the hot water pump is 24/7. The Capillary thermostat was replaced twice by previous owner of the house. It appears that the capillary thermostat is stuck closed ie doesn't cut off the circuit so that the pump continue to work. When disconnected at one pin the...
  7. B

    Viessman VITODENS 111-W Pressure Dropping.

    Hello, I was hoping you could help me identify what is causing the problem with my Viessman Combi Boiler. It is a Viessman VITODENS 111-W. Type B1LA. Gas condensing and storage Combi Boiler. The Pressure drops to below 1 bar (Pre determined cut off point) and the boiler refuses to turn on. So i...
  8. WilliamCumbria

    Worcester Greenstar 30cdi noise (with video)

    Hi everyone, William here from Cumbria, originally from Essex, Chelmsford. I moved in to a new house about 2 years ago which has a worcester greenstar 30cdi fitted. It's a 5 bed house so plenty powerful enough for the property. Ever since we moved in the boiler which is in a cupboard in my...
  9. C

    Boiler repair - Fixed

    Hi all, I'm hoping that one of you lovely experts can help. My boiler is a potterton suprima 50l (with the new PCB 5111603). It only comes on every now and again (I think when it's fully cold) and then cuts off after a couple of hours or so. The light is flashing Orange/Green which in the...
  10. S

    Combi boiler losing hot water???

    Hi guys I've got a potterton gold combo boiler and just recently when the water temp is set just above the minimum level it cuts out? Central heating is fine but when I set the water temperatre slightly above minimum I can hear a rumbling from the boiler and then I lose hot water. If I keep the...
  11. Cliff1805

    Low hot water flow rate from Ideal Isar combi boiler

    i would be grateful for any advice. I have a Ideal Isar combi boiler serving four radiators and providing hot water. The heating is working ok and I get a healthy flow rate from the cold water taps but I get little more than a trickle from the hot taps. I used to get a really powerful shower but...
  12. G

    Boiler has a mind of its own

    A Gas Combination Central heating and hot water boiler. Working well for years, then stops. Serviced then worked again. A few days later, stopped. Replaced several parts and it started again. Ran for a few days later, stopped. All systems working OK up to point of continuous combustion of gas...
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