How to mend ... Ch Little Ideas

Boiler cuts out when CH set to on?

I have a potterton system with a 2002 timing controler and a PT2 remote electronic thermostat. If the system i... [Read more]

myson housewarmer?

I have economy 2 back boiler and the boiler keeps switching off. It lights up fine and can run well for week b... [Read more]

Strange timer fault on Halstead Best 50?

I have a Halstead Best 50 which works fine on HW timer but does not work on CH timer. If I switch to continous... [Read more]

Worcester Heatslave 20/25 Combi-boiler?

Our Worcester heatslave 20/25 combi-boiler seems to have a mind of its own. The hot-water sometimes takes age... [Read more]

No hot water when Ravenheat 84E? on but hot water when the CH is on?

My Ravenheat 84e/t has stopped giving out hot water. I can only have hot water when the system is fully operat... [Read more]

Vokera Linea Max - hot cycling after re pressurising expansion vessel?

I have re pressurised the expansion vessel to 12psi having isolated and drained the boiler. The vessel now hol... [Read more]

Worcester 350 water luke warm?

Recently changed main PCB now water luke warm CH okay. Demand light does not indicate. Checked circuits as per... [Read more]

ravenheat h85t looses pressure on ch only?

I have had my boiler switched to dhw only through summer ,now its dropped cold but back to ch/dhw works fine o... [Read more]

Worcester Bosch 400BF Hot Water Cutting Out?

Hi I have a problem when running hot water it is hot for a while then runs cold then back to hot the CH light ... [Read more]

No heating, but Hot Water works fine Vaillant VuW 242 failure: F.28 ?

In my case F.28 comes ONLY if heating needs to start. If I open the hot water tap during CH ignition attempt,... [Read more]

Vaillant Pro 28. Rads get warm when hot water is run?

I recently had error code F75. Pressure was low and boiler locked out. I put pressure right and turned boiler ... [Read more]

CSi 120T manifold melted?

the flue manifold has melted along with the condensate pipe where it leaves combustion chamber.Any ideas-sound... [Read more]

no hot water from shower?

i have a mira shower (mains) and i have no hot water the ch system works as do my hot taps when i turn on the ... [Read more]

Glow worm 80e locked out, what do I do?

I have a Glow worm compact 80e that remains locked out I cant re set the boiler at all no hot or CH any ideas ... [Read more]

not going to fire up on ch but hw ok? baxi 105e?

changed burnt out pcb fire boiler up on hw all ok but ch lights for 2 sec cuts off sparks for 10 sec cut of as... [Read more]

how to check the pump on a worcester 28si boiler?

i want to know if the pumps going on my boiler. the ch is still working and hot water still working but wont w... [Read more]

Britony Combi SE 70 80 Error + Low Pressure?

Hi all, My boiler is showing the "No Flame Detected" error but in addition the CH pressure gauge shows that... [Read more]

Ravenheat boiler with no hot water?

Have a CSI 85..CH is working fine but hot water is non existent. Started out intermittent.. Boiler fires up ... [Read more]

baxi 105e flame fault led flashing?

hi, my baxi 105e was working ok yesterday until i noticed that the pressure had dropped to zero, i increased ... [Read more]

How can I fix my Vaillant VCW-GB 242 EH?

CH works fine until any DHW flow is turned off. Burner goes out and stays out even though CH is calling for he... [Read more]