Mend > Home Heating Systems

hot water tank overflowed into headertank?

hot water tank over heated and overflowed into header tank then started to overflow over the top of header tan... [Read more]

Wiring for vaillant combi boiler 837?

Can anyone help me with wiring diagram for combi boiler 837 I am renewing my old system. Many thanks

Shower Cold?

I just moved into a property and the Bristan 1901 thermostatic shower runs luke warm/cold, I believe the unit ... [Read more]

why is my Thermostat not switching off the radiators?

I have a wall mounted thermostat. When I switch it to 0 it should not come on. However even when the temp is 1... [Read more]

Vaillant 824e turbomax plus turning on but no ignition!!!!!!!!?

my turbomax plus turns on but there is no ignition and therefore am not getting any hot water and the central ... [Read more]

Worcester Bosch 240 rsf demand ignite not working?

Hi I have a 240 RSF that has suffered previously from a leaking PRV, so I am familiar with represurising, ble... [Read more]

boiler?

my hearter was removed as the house was decorated now Im traying to switch on hearter is ot working and no hot... [Read more]

Boiler problems?

When i switch on my hot water the heating comes on at the same time. Is there anything i can do to stop it?

F 13 error on a glow worm 38cxi?

My 38cxi is approx 3 years old and I have had the normal problems with the boiler. F14 which is an over tempe... [Read more]

no hot water worchester bosch 240?

when you call for hot water only, nothing happens, when you swicth to central heat and hot water the boiler fi... [Read more]

my s24?

my heatline S24 condencing boiler has the over heat cut out light showing. We have tried turning off and on as... [Read more]

Drayton DigiStat+ Wiring?

Anyone any ideas what wires go where? Got red, yellow and blue (also earth) Got Off / On / Common & N ... [Read more]

vaillant boilers sf6?

can anyone please help my boiler has been running perfectly for four years ansd all of a sudden iit stops the ... [Read more]

is my s24?

is my s24 heatline boiler a condensing boiler?? and can i tell the date of manufacture by the serial number???

How can I fix my Puma 100e combi boiler from constantly turning on and off?

I have monitored the running of the boiler for over 30 minutes and it fires up and stays on for 30 seconds the... [Read more]

How do I fix my hot water?

Recently the temperature of my hot water has dropped, it now only gets luke warm. The pipe leading to the top ... [Read more]

Mid Position Valve Not Switching - No CH?

Hi, Need some help with the below. I have hot water, but no central heating. Common problem you say, but i... [Read more]

any advice or tips on fitting a valliant diverter valve part 011289?

Hi just ordered a diverter valve for my valliant boiler any tips or advice?

how can i add more pressure?

can you pump a combi boiler

leak through base of boiler casing?

there is water dripping slowly from the bottom of the diverter valve body. does this mean a new diverter valv... [Read more]