Mend > Home Heating Systems

1

hot watrer goes cold?

I have hot water for about 30/40 seconds then it cuts out and runs cold, then fires up again to hot , this kee... [Read more]

1

how can i fix my ravennheat rsf 820 /20t?

loosing presure to 0bar about every 2 days with no ovious signs of leaks

Calydra 100 Timer problem?

I have a C&M Calydra 100. It's working fine on all modes, except when it is switched to Timer mode the timer ... [Read more]

2

Radiator not working?

One bedroom radiator not working, other six are fine. Pipes on both sides of the offending radiator are cold... [Read more]

1

boiler switches itself off?

my ariston boiler (which is less than 3 years old)switches itself off randomly, the red light comes on under t... [Read more]

Unica he 36HE combi boiler limit thermosat fault/fumes thermosat fault 20?

Unica he 36HE combi boiler limit thermosat fault/fumes thermosat fault 20

where is the valve on a valliant turbomax828e?

how do i increase the pressure in my boiler

1

What exactly is a Boiler Service?

I have my gas combi boiler serviced every year by my landlord but I am a bit concerned about how it is being s... [Read more]

vokera 24 compact radiators not getting hot?

Most of the radiators in the house are 15m and are ok there are 3 that have 10m feeds, the 3 with 10m feeds ha... [Read more]

2

Vaillant VCW GB 242EH combi boiler?

CH flame failure due to low water pressure. re- pressurised but wont ignite. pump , fan & DHW working OK

1

Ariston boiler fault?

Microgenus keeps coming up E34

what way up does the diaphragm go on my corvec britony11a?

what way up does the the diaphragm go on my corvet britony 11a water heater

1

boiler pressure?

every time i top up the water on boiler it works for about ten minutes then cuts out ,after a while i realised... [Read more]

2

E4 on remeha avanta plus 28?

E$ consistently coming up, have closed down and restarted, condensation chamber checked heating and water cam... [Read more]

Thelia 23 e boiler - pilot light?

My pilot light won't light - plus pressue bar needs adjusting,

1

water tempressure fluctuating constantly ?

When in shower or using tapes water temp constantly goes hot and cold , And pressure has to be topped up regu... [Read more]

Valliant Turbomax 242?

I need to add more water to the system but cant see how to do it. Can anyone help please?

Rain water coming into my boiler?

I have a wonky flue and when it rains heavy the water is coming down into my Ferroli Modena 80 E combi boiler.... [Read more]

2

expansion tank over flowing!?

i have changed ball valve in the expansion tank but it still over flows cant see any leak from ball valve or ... [Read more]

motorized valve?

hi i have a bahama 100 and when i call for water the motorized vale goes back and forward. so the water out of... [Read more]