Mend > Home Heating Systems

Myson velaire oil pump?

I have an old Myson Velaire oil boiler and the oil pump has seized is there a replacement out their that fits ... [Read more]

Vaillant eco plus 531 boiler?

replaced pcb board f70 ,asks for password no,17, but no 17 on display ,goes from 16 to 22 .on boiler vaillant... [Read more]

How can I fix this problem?

worcester 19/24 cbi keeps cutting out when the front is sealed

Thermostat question?

What are the batteries for in a wired myson mprt room thermostat, I presumed if your stats are wired there is ... [Read more]

Honeywell921?

Some of the numbers have disapeared from screen

How can i repair a noCN fault on my boiler?

ferroli optimax - fault code noCN can anybody help to resolve this matter?

Danfoss RX1?

I have a Danfoss RX1 attached to my Samsung air-water underfloor heating system. It has two buttons: Prog and ... [Read more]

Gloworm 30 CX no heating?

Gloworm 30CX I have hot water but no heating?

Ferolli Optimax HE 31C expansion vessel change?

How easy is it to change the expansion vessel on a Ferolli Optimax HE31C please? Looks straightforward but nev... [Read more]

How can I make my time clock work on my Ferroli F30?

The time clock on my Ferroli F30 shows no display

How to fix?

Gloworm 100e problem ,It's been firing up intermittently over the last few months but now when you switch on y... [Read more]

Heatline Monza 28A?

Hello I have a Heatline monza 28A combi boiler which I have just started to have problems with. The heating... [Read more]

On/off tap won’t turn?

The on/off tap on my Robinson willey firegem S gas fire won’t turn

Can I change a TRV thermostat head for another one?

I have a water filled radiator (part of my gas central heating system) which is not coming on. I have worked o... [Read more]

Worcester green Star?

Worcester green Star shows u9 can't get hot water

Baxi Bermuda 2 inset fire?

I have a Baxi Bermuda 2 inset fire only, ( no back boiler ) I press the button to light it, I hear it sparking... [Read more]

Air lock Worcester 18/25?

Worcester oil boiler 18/25 fuel was stolen from tank. Now have fuel but boiler won’t stay on, only for a few... [Read more]

Heating?

My heating goes on for half an hour then doesn't come back on its a boss therm with a br1 reciever

Standy by battery on Horstmann H37 XL Progammer?

I have a Horstmann ChannelPlus H37 Series 2 Three Channel Programmer. Instructions state it has a non-recharg... [Read more]

Worcester Bosch Greenstar ri 24kw?

WB Greenstar24kw Ri, heating working , but does not ignite for hotwater, so no hot water. (pressuried tanks... [Read more]