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Mend Heating, Home Heating Systems

vaillant 221H hot water problem?

When running bath water the water starts out hot and then goes cold and then hot again. When watching the main... [Read more]
Mend D.I.Y, Plumbing

Hot water cools when tap is opened fully?

Hi. I have a Vaillant Turbo max plus 824E, that works fine untill the bath hot water tap is opened fully and... [Read more]
Mend Heating, Home Heating Systems

vaillant vuw 242?

is my diverter valve faulty on the hot water. the heating flow pipe gets hot when the hot water is running and... [Read more]
Mend Heating, Home Heating Systems

Does anyone have the user manual for a Vaillant VCW GB 221 H?

I have the instructions for Installation and Servicing, but need the user manual as I now have not hot water o... [Read more]
Mend Heating, Home Heating Systems

vaillant 280e no constant hot water...radiator heat is fine?

i have a vaillant 280 heating system that will not produce hot water..it is fine at first for few seconds then... [Read more]
Mend Heating, Home Heating Systems

ignition indicator not comming on zo no heating or water?

I have a vaillant turbomax vuw 242 e, or 282 e and the ignition indicator iz not comming on zo there iz no ho... [Read more]
Mend Heating, Home Heating Systems

vaillant vuwgb242e boiler?

heating side of it started to hit mian trip out, but hot water was fine. now the hot water is causing it to tr... [Read more]
Mend Heating, Home Heating Systems

what is wrong with my Vaillant Sonnet 18?

The hot water is working fine but the heating system is not working. Can you tell me why, as it is a very old... [Read more]
Mend Heating, Home Heating Systems

What does the error code "F22" mean?

My Vaillant Ecomax 824 Combi-boiler is showing the error code F22 and it's not producing any hot water or heat... [Read more]
Mend D.I.Y, Plumbing

hot water out of cold water tap?

I have a vaillant ecoTech boiler and when I turn the cold water tap on in the bathroom, warm water comes out t... [Read more]
Mend Heating, Home Heating Systems

pressure loss on vaillant 824 e thermo compact?

my boiler is losing pressure very quickly, there is no sign of any leakage and seems to drop quickly when disc... [Read more]
Mend Heating, Home Heating Systems

vaillant eco tec pro 28 ?

My central heating goes off when I open the hot water tap. To get the heating back on I have to switch the ce... [Read more]
Mend D.I.Y, Plumbing

hot water flow problem?

i have a vaillant boiler when i turn the hot tap on the boiler only fires up when tap is fully open when you s... [Read more]
Mend Heating, Home Heating Systems

Cool radiators and luke warm water.Vaillant compact 637e?

I have a Vaillant compact 637e. It seem to be working OK as it's running and there are no fault codes, but my ... [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

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

what is fault F75 on vaillant ecotec 360?

boiler does not come on so no hot water or heating.
Mend Heating, Home Heating Systems

first no hot water , now no heating vaillant 282e?

is there muck in the tubes of the pressure switch or is it the micro switch for that white arm behind the pum... [Read more]
Mend Heating, Home Heating Systems

I have a vaillant eco tec and the pressure is only 0.8. ?

I have a vaillant eco tec and the pressure is only 0.8 so therefore the heating is working but there is no hot... [Read more]
Mend Heating, Home Heating Systems

our can i fix my cobi vaillant boiler?

my boiler the water keeps going hot then cold at all times what is the problem

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