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We have 228 questions about mending 'water demand heating'

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Mend Heating, Home Heating Systems

central heating?

I have a Highflow 400BF system. Recently the pressure has dropped to 1.1 bar, but when I try to top up the gu... [Read more]
Mend Heating, Home Heating Systems

How Can I Fix A Potterton EP2002 Heating System?

My daughter has a Potterton EP2002 system with a Potterton Suprima 40L boiler and a MPE322 diverter valve. Th... [Read more]
Mend D.I.Y, Plumbing

no central heating on demand?

when i select CH boiler fails to ignite but when i select just HW i get hot water and central heating is th... [Read more]
Mend Heating, Home Heating Systems

Central heating not working independantly?

Replaced room thermostat as old one damaged, replacement is Drayton Combistat, 3 wire config'. All seemed wel... [Read more]
Mend Heating, Home Heating Systems

Worcester 240 slow pressure rise?

Hi..I have recently replaced two major parts in my Worcester 240: "Diverter Valve".... during the summer 2009... [Read more]
Mend Heating, Home Heating Systems

baxi combi 80e intermitent hot water failure and pessure droppping?

My baxi combi 80e has an intermittent fault with the demand hot water running cold and the system is also losi... [Read more]
Mend D.I.Y, Plumbing

Would router interfere with wireless room thermostat?

Our room thermostat ( Honeywell) has ceased to communicate with our boiler.This coincides with having a router... [Read more]
Mend Heating, Home Heating Systems

Worcester 24iJunior problem?

Hi My Worcester 24iJunior is heating water on demand fine. But when I turn on the central heating the boil... [Read more]
Mend Heating, Home Heating Systems

No heating, but hot water. Boiler tells me there is ' NO demand for heat'?

I have a Vaillant ECOtec plus combination boiler. I rang Vaillant and they asked me to make various checks. T... [Read more]
Mend Heating, Home Heating Systems

potterton performer 24kw HEcombi?

Hello ,is there any quallified heating engineers out there who may know wat this fault is. no hot water,the p... [Read more]
Mend Heating, Home Heating Systems

Worcester 24i Junior - Only stays on for 5 Secs?

Further to my post about the melted water flow switch filter, the boiler fires up but only stays on for 5 seco... [Read more]
Mend Heating, Home Heating Systems

Worcester 24i RSF Junior - Water Flow Switch Melted!!?

Hi, had a few probs recently wi boiler, new Gas Valve & new PCB within last 2 months seemed to have sorted it.... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosch 240 RSF not firing?

Worcester Bosch 240RSF combi boiler. Soft water, high mains pressure. Here's the problem: I had replaced th... [Read more]
Mend Heating, Home Heating Systems

worcester 350 combi boiler keeps tripping RCCB?

As soon as demand for either hot water or central heating is called for the RCCB in my consumer unit trips.Any... [Read more]
Mend Heating, Home Heating Systems

The heating on my Worcester 280 boiler has stopped working?

The hot water heating works on demand but the heating doesn't. The LCD display isn't working. This hasn't been... [Read more]
Mend Heating, Home Heating Systems

Ideal isar combi stuck in DHW, won't fire?

Hello Does anyone know much about Ideals? Mine is stuck in dhw, it isn't firing (no fan no pump either).... [Read more]
Mend D.I.Y, Plumbing

Valiant VCW GB221H does not fire on demand?

I have a combiboiler of the above model. It has been shut down for the past 12 months or so. I have flushed th... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCW GB 242 E :- Failure to iginite when central heating demanded?

My Vaillant VCW GB 242 E Combi Compact Wall Mounted Boiler is failing to ignite when the central heating is sw... [Read more]
Mend Heating, Home Heating Systems

Vokera boiler always at 55-60degC?

Although it is summer and all settings are down at lowest mark the and no radiators are hot and on/no taps run... [Read more]
Mend Heating, Home Heating Systems

how can i repair my worcester 26cdi combi boiler?

the hot water and central heating are overheating and shutting the boiler down. when iether are called for on ... [Read more]
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