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We have 157 questions about mending 'boiler switch set'

How to mend ... Boiler Switch Set

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Mend Heating, Home Heating Systems

Halstead best 50 boiler?

Turning the heating system on via room stat, boiler ignites and runs. However boiler does not switch off when ... [Read more]
Mend Heating, Home Heating Systems

Boiler not switching on at set times?

the boiler will not switch on at the time set on the timer. seems to come on about two hours later
Mend Heating, Home Heating Systems

S Plan Plus System and Vaillant ecoTEC plus 831?

Vaillant ecoTEC plus 831 boiler is in and running the house heating and water. Control of heating is only by... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCW242E Overheating and Uncontrollable?

I have a Vaillant VCW242 E Combi Boiler. Following a freeze up of the Boiler, I can no longer control the t... [Read more]
Mend Heating, Home Heating Systems

Worcester Greenstar 24i junior: doesn't work!?

Hi I've just moved into a new property, the boiler is only about 2 years old; when I moved into this house th... [Read more]
Mend Heating, Home Heating Systems

Only get hot water when heating is on with Vaillant Combi boiler?

I am unable to get hot water when switch is set to domestic hot water. However I am able to get hot water whe... [Read more]
Mend Heating, Home Heating Systems

how can i fix my timer & selector switches on my Thorn EMI M30/42B boiler?

I have a Thorn EMI freestanding boiler model number M30/42B and the Timer Switch does not move or set any time... [Read more]
Mend Heating, Home Heating Systems

Boiler not coming on and going off with the timer?

Boiler will only operate on and off with reset switch/temperature set to the left of the boiler
Mend Heating, Home Heating Systems

worcester 350 wont respond to program?

combi boiler wont respond to timing program that i set. will switch off or start up at any time. what are poss... [Read more]
Mend Heating, Home Heating Systems

potterton EP2000 (old brown one) problem - CH always on ???

I have a Potterton EP2000 - problem is when i try to put the HW slider on any setting i.e twice/ once/ 24hrs, ... [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

how to fix my reno HE30C combi series johnson & starley ?

my boiler is all on. my hot water is fine. but when i flick the switch up to put central heating on its not tu... [Read more]
Mend Heating, Home Heating Systems

Halstead Ace Circa 2001 - Not Heating?

Problem – Intermittent fault or faults causing the boiler to cease heating water and or Central Heating. Oc... [Read more]
Mend Heating, Home Heating Systems

how do i set a switchmaster 300?

I have a switchmaster 300 boiler that controls the heating and hotwater in the house. when i want to shower,i... [Read more]
Mend Heating, Home Heating Systems

heating comes on by itself?

my thermostat is off but the boiler lights up and warms the house-controls are set on continuous -therefore th... [Read more]
Mend Heating, Home Heating Systems

Heating/Hot Water Problems with Ravenheat RSF100ET?

Hi Original problem was not very hot DHW, but burner running flat out. Changed both DHW and CH thermistors, ... [Read more]
Mend Heating, Home Heating Systems

How do I set the timer on my Baxi Genesis 80?

How do I know which are the "on" and "off" settings? I assume it's something to do with the little circle with... [Read more]
Mend Heating, Home Heating Systems

No hot water from Ravenheat RSF82E combi boiler?

I can only get hot water if I switch the central heating on permanantly. Even if I just set the boiler for hot... [Read more]
Mend Heating, Convector Heaters

no heating or hot water? suniar duval thelia 23e?

The problem seems to be the clock/programmer. With the slector switch set to 'auto' the display will normally ... [Read more]
Mend Heating, Oil Filled Radiators

hot water but no heating?

hello. i have a worcester danesmoor oil boiler, its a sealed system, honeywell st699b programer honeywell V... [Read more]
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