How to mend ... Boiler Flow Pump

while running hot water boiler runs hot & cold for the duration tap is on?

tested gas supply 21 mb flow rate 12 ltr removed heat exchanger dhw clear changed both ch &dhw sensors checked... [Read more]

halstead finest gold locking out?

finest gold locking out,i have to switch off/on power 4-5 times to get it running, pressure is at 1.7 bar on g... [Read more]

riello motor no longer works (and yet it did before I took the pump apart?)?

Our boiler stopped working, I ruled out everything except the pump or something on the pump like the valve or ... [Read more]

FERROLI OPTIMAX 25C OVERHEATING?

When I turn on the hot tap the boiler fires up then a few seconds later it overheats and I get F3 fault code, ... [Read more]

Glow Worm Ultimate control unit fails to switch off pump?

I have a Glow Worm Ultimate Boiler which has a control unit with the following code ULT 100F(its about 10 year... [Read more]

what is wrong with my glow worm swift flow 100?

everytime the boiler starts up the pressure gage shoots up to a high level, a friend suggested loking for the ... [Read more]

pump flow direction?

ideal mexico super cf65 standing in front of boiler which way should pump arrow face left or right when bl... [Read more]

vokera linear,no heating flow?

no code showing,but the boiler fires up then shuts down at 86 degrees, it then fires again at around 70 degree... [Read more]

How can I fix my Glow Worm 55F boiler?

Re-Glow Worm 55F Fuel saver boiler. Fault:- boiler fires up and remains lit for 40secs., it then cuts out for... [Read more]

How can I fix my Potterton Puma 100?

I have a Potterton Puma 100 which keeps closing down. I seem to cure the problem for a while but then it shut... [Read more]

boiler will not fire up?

i have a halstead he30 ace boiler, fan and pump kick in but will not fire up. have been told that it could be ... [Read more]

boiler goes onto pump overun after "COLD WATER" IS USED?

worcester 24i Why when I operate the cold water in my house and then turn it off does my flow switch operate ... [Read more]

modena102 ch problem?

i have a modena 102 that heats water perfectly but on ch pressure rises boiler creaks and after 30 seconds ish... [Read more]

does anyone know hy my vokera linea 24 cycles on and off?

my boiler lights the goes out every 5 or 6 seconds on heating and hot water flow and return clear pump running... [Read more]

Ravenheat CSI primary not igniting, can you help?

I have a Ravenheat CSI primary condensing boiler, this is about five years old and has worked okay. We recent... [Read more]

Baxi 80E heating is on constantly even with timer switch in off position?

Central heating pump is constantly running. Boiler lights up intermittently, runs for few seconds, then flame ... [Read more]

How can I diagnose my Glow worm Fuelsaver F100 boiler problem?

My ageing, but until now perfectly reliable, Glow worm wall mounted central heating boiler appears to have dev... [Read more]

blockages?

how to fix a blockage from the glow worm boiler flow pipe to the pump

Glow Worm Space Saver Mk2 - Cutting Out- No Hot Water?

The boiler was ticking over on the pilot light. After switching the system on/off I couldn't hear or feel any ... [Read more]

i have just iftted a new pump but the hot water and heating do not fire up?

i have just fitted a new pump the pump is working but when i turn on the hot water or heating the piolet light... [Read more]