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We have 196 questions about mending 'water boiler unit'

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Mend Heating, Home Heating Systems

worcester cd35i ii pressure problem?

i have a problem with my combi worcester cd35i ii the pressure of the unit is at just over 1 bar and when you ... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Baxi Combi 80Eco boiler?

The red fault light comes on when we are running hot water or the heating is on, we reset the unit with the sw... [Read more]
Mend Heating, Home Heating Systems

Thermostat Control?

I have a Digistat RF1 wireless unit which was replaced in Feb. since replacing it, a red light appears on the... [Read more]
Mend Heating, Home Heating Systems

how can I tell if the gas valve is being switched?

We have an old Potterton Netaheat 5/10 boiler, everything seems to be working, except gas to the main burner! ... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCW, no hot water or heating! help desperatly needed?

I have a vailllant VCW GB 282E and the hot water and the heating do not work. I havnt had the boiler on for th... [Read more]
Mend Heating, Home Heating Systems

Lockout after 11 years can you help with some ideas?

I have a Thermecon External wall mounted boiler that is 11 years old. Other than cleaning and servicing, I hav... [Read more]
Mend Heating, Home Heating Systems

help with oil burning boiler?

we have had it up to here with this oil burning boiler we have. for 5 weeks we have iregular water and heating... [Read more]
Mend Heating, Home Heating Systems

water bubbles out of unit inside boiler?

combi boiler dripping water and notice bubbles spilling out of a unit inside the boiler when turn water tap on... [Read more]
Mend Heating, Home Heating Systems

no flame to heat water or heating on classic LXFF and FF Fanned Flue gas Bo?

we have electricity to the boiler and you can heat the pump work but the flame in the downstairs unit is not b... [Read more]
Mend Heating, Home Heating Systems

Potterton Netaheat 16-22 will not fire up?

My Dad has a Potterton Netaheat 16-22 MK 2 F boiler . it has not bean run for a few months(prior to this worki... [Read more]
Mend Household Appliances, Steam Cleaners

Polit Vaporetto 240 Trips the mains?

Hello I have dismantled the unit & there is a small grey square unit attached to the steam reg valve the mark... [Read more]
Mend Heating, Home Heating Systems

sime 80e friendly format ,start,stop,start,stop etc?

Hi my boiler has just started playing up ,put heating on ,fan runs ,ignitor fires up gas for about 5 seconds t... [Read more]
Mend Heating, Home Heating Systems

Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]
Mend Heating, Home Heating Systems

Glow Worm Compact 80E switches on without the tap !?

This morning I heard clicking and went to the boiler and noticed the domestic water heater switches on and off... [Read more]
Mend Heating, Home Heating Systems

Halstead Ace High - Overheat and Lockout?

Hi, We have a Halstead Ace High. Within about 45 seconds after drawing a substantial amount of hot water (t... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Greenstar CDi condensing combi boiler?

...after nearly 4 years of fault free operation from new, this morning I had no hot water & a "EA" message dis... [Read more]
Mend Bathroom Appliances, Baths and Showers

Problem with my Aqualisa Power Shower?

I have just had a new boiler installed and my Aqualisa Power Shower is giving me problems. The hot water from... [Read more]
Mend Heating, Home Heating Systems

no DHW on my halstead combi 82?

The central heating works fine on my boiler but does'nt fire up on turning the tap for hot water. Iv'e change... [Read more]
Mend Heating, Home Heating Systems

Worcester 28i RSF Boiler?

Woke up this morning with no hot water or heating. The boiler says the pressure is 0. We had no problems the ... [Read more]
Mend Heating, Home Heating Systems

f9 flashing on combi boiler 30ci glowworm ?

the light flashes red intermittantly. the pressure is ok at 1.2 bar . we have CH . when the water is on it is ... [Read more]
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