how can i fix my switchmaster 805?

my hot water works when i press for my heating to come on it dont i leave it on and it comes on a few hours later but only stays on for a few mins

can switchmaster 805 be mended?

I pressed one of the buttons and it broke,the spring shot into space ,and the plastic behind it went walkies.the top 3 bottons still work but the bottom 3 buttons are jammed. {2 of them are fine ,it's ... more

done

Can I replace my Switchmaster 500 timer with a newer model?

The clock on my ageing Drayton Switchmaster 500 heating and water timer has died. Can I directly replace it with a 400 or 600 or 805 model without a major rewring job?

switchmaster 805 manual ?

i have a switchmaster 805 central heating and water control box i would like to know which coluor nob is the cenral heating and which one does the hot water

done

Can a switchmaster 400 be replaced easily with a digital programmer?

I have an old switchmaster 400 which I would like to replace with a modern digital programmer. Can anyone suggest if this is possible with existing wiring and what make or model would be compatible. T ... more

My switchmaster SM905 is ticking loudly all the time - Why?

We've noticed the switchmaster SM905 on the wall is ticking loudly all the time for the last week and seems to be getting louder. Can you advise whether this is a sign of the switch about to break do ... more

heating only comes on with hot water?

my heating will only come on when the system is heating the hot water. can you let me know what I should look for. The Pump is a Myson with a Honeywell F5 9525 switch box. I have noticed that the swi ... more

Change Switchmaster Mid Valve to Salus?

I've just had my S/Master changed (duff contacts) for a Salus (MV 322) 3 port but now cannot have combined HW & CH! CH is available permanently but HW is only available when CH is switched off. The SW ... more

The switch is.... switchmaster sm905?

Please see below

done

wiring diagram?

i need a wiring diagram for a y plan heating system using switchmaster controls and a froststat

done

switchmaster 300?

i have a switchmaster 300 about 14 years old.the timer has stopped and will not restart.i have had this happen in the past where it has stopped after a longish power cut,and i have got it going by tur ... more

done

How do i replce Switchmaster VA 1 Midi Valve with a Honeywell?

The Switchmaster 3 way valve on my CH is not working properly. I can't find one anywhere. If I have to replace it with a Honeywell V4073A, can anyone tell me how to wire this? The Honeywell has five ... more

done

We have a switchmaster 300 timer on our heating system?

It doesnt always work!!! We cant rely on it if we set the timer as although it sounds like its working and the pilot is lit, nothing happens!! We had the heating and boiler serviced about 6 months ag ... more

done

Again can SM905 be repaired as timer cannot get past 'notches'?

As with other's, my acl switchmaster sm905 timer will not go round. The timer works in twice mode but not in once mode as timer cannot get past the notches. We need to replace with same so can fit wir ... more

done

Does anyone have an actuator for a discontinued Switchmaster midi valve?

I need the parts or an actuator VA1 for a mid position valve manufactured by Smiths/UGI in the 1990's and now discontinued as I cannot easily take the pipes off the old one!

done

Potterton 40e Netaheat 3A Spur Fuse Blowing?

We have a Potterton 40e Boiler and it has worked fine for 6 years. In the past few week it has resorted to blowing the 3A fuse to the Programmable control unit. Now the strange thing is I can put a ... more

done

Baxi solo WM 50/4 RS fails to ignite?

We've just moved and have a Baxi Solo WM50/4 RS which I believe from looking at sites is probably about 10 yr old. It has a Grundfos pump and ACL switchmaster clock attached. The boiler fired up ini ... more

done

SWITCHMASTER 300?

CAN YOU EXPLAIN TO ME HOW YOU SET THE TIMER ON SWITCHMASTER 300 IT HAS WHITE AM NUMBERS AND BLACK PM NUMBERS THEN TWO ORANGE PLASTICS SLOT OVER BITS AND TWO CLEAR BITS ....

done

switchmaster sm905?

can't seem to find a replacement for my heating controller; the timer doesn't go round. Is there a compatible replacement?

done

switchmaster mid valves?

how do i re wire the old switch master valve for a honeywell model. the old switchmaster valve has 6 wires and the honeywell only has five wires. will this valve work on my system or do i need a plumb ... more

done