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We have 40 questions about mending 'switchmaster' in category Heating, Home Heating Systems

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Mend Heating, Home Heating Systems

Switchmaster 905?

my switchmaster 905 has stopped going round. water/heating still work if you manually trip. any one got one on... [Read more]
Mend Heating, Home Heating Systems

How to set the meter timer?

My switchmaster 805 timer has stopped working as of yesterday, it doesn't seem to turn off on the time that it... [Read more]
Mend Heating, Home Heating Systems

switchmaster 300?

switchmaster 300? i have a switchmaster 300 about 14 years old.the timer has stopped and will not restart.i h... [Read more]
Mend Heating, Home Heating Systems

switchmaster 805 not turning?

Hi I hope you can help! I have just moved into a new place with the heating timer Switchmaster 805. A... [Read more]
Mend Heating, Home Heating Systems

Problem with installing Drayton MA1 Valve & Actuator?

Hi everyone, I swapped out a failed switchmaster acutuator, and replaced it with a Drayton MA1 and wired it us... [Read more]
Mend Heating, Home Heating Systems

rReplacing a Switchmaster 3 way motorised valve with a Drayton 3 way valve?

My discontinued switchmaster 3 way motorised valve has 6 coloured wires and I am installing a Drayton motorise... [Read more]
Mend Heating, Home Heating Systems

Switchmaster sm905?

Hiya my switchmaster sm905 timer has started ticking every few minute when the hot water or heating is turned ... [Read more]
Mend Heating, Home Heating Systems

switchmaster cylinder stat to honeywell cylinder stat?

on the switchmaster sct1 there are 4 wires-red-brown-blue-green/yellow,which do i use with a honeywell L641A 1... [Read more]
Mend Heating, Home Heating Systems

The timer is not working on my Switchmaster 905 heating timer?

I have this timer installed but the timer is not working. If i manually switch to all it works but the clock ... [Read more]
Mend Heating, Home Heating Systems

3 way valves?

can I swap a switchmaster for a danfoss 3 way mid position valve and what would the wiring arrangements be. Ch... [Read more]
Mend Heating, Home Heating Systems

Switchmaster sm805 How does it work?

Can anyone tell me how to work the sm805? Mine has dark blue & green tabs & I dont know which starts the heati... [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

Sunvic select 107 XLS + Glow worm ultracom hxi?

Hi, I hope someone can shed some light on this! I recently replaced the timeswitch for the boiler so I now ... [Read more]
Mend Heating, Home Heating Systems

Mend switchmaster 805 ?

The controller no longer rotates how does the unit come off the wall is it repairable
Mend Heating, Home Heating Systems

Switchmaster SM905 stoped working?

Hi can any1 tell me where i can get a vialble replacement for my Switchmaster SM905. the Dial no longer moves ... [Read more]
Mend Heating, Home Heating Systems

Hot Water System?

Have got a Switchmaster 805 programmer connected to the central heating system, which i have had for many year... [Read more]
Mend Heating, Home Heating Systems

switmaster?

having problems with central heating watr gets hot upstairs rads warm, down stairs cold,when drained gets warm... [Read more]
Mend Heating, Home Heating Systems

i need fixing instructions for the switchmaster sm 905?

how can i fix my switchmaster sm 905 so that the right wires go to the right terminals
Mend Heating, Home Heating Systems

replacing switchmaster midi 3 port valve?

can a sunvic 3 port momo valve replace an old switchmaster midi 3 port. if so can anyone tell me how to wire i... [Read more]
Mend Heating, Home Heating Systems

switchmaster?

is the switchmaster mid poss valve obsolete,need new actuator, can not find one?
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