Recent: Windows 11, Dell 5450, JBL Bluetooth headphones?

Mend > Home Heating Systems

Mend Switchmaster 300 Boiler System Faulty

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 ago and were told all was fine. Any ideas or do we need to buy a new one?

Angie
November 2007
Thanks for your advice Colin, had the timer checked and was told its all ok and so am now looking into the fact that it might just be the boiler!!! Thanks again

Angie
November 2007
You will probably need a new one. They are very easy to replace though.

Colin
November 2007

Automatic Answer

We may have found other answers which could help you.

Click here for Boiler System Faulty

Related Questions ...

Mend boiler pcb condensate
1

Faulty vokera compact 25?

I have spoken to the gas safe engineer that installed this boiler new approx. 3 years ago about the problems i... [Read more]
Mend pressure worcester heat
1

Faulty Worscester 35 CDi loosing pressure?

My Worcester 35cdi has had 4 replacement heat exchanger's in less than 10 years the first 2 were within the fi... [Read more]
Mend boiler couple days
2

Vokera excell boiler needs topping up every couple of days ?

My boiler needs topping up every few days there are no apparent leaks in the system. the only clue is the pres... [Read more]
Mend rid air system
2

How can I get rid of trapped air in central heating system?

After replacing the small rubber seal on the shaft of the hydraulic actuator in my BIASI 24S Combi boiler, the... [Read more]
Mend boiler fault heating
2

Suprima 50 HE No lights unless Gas Valve disconnected?

Hi, I have a Suprima 50 HE boiler that decided to stop working yesterday. When I got to it, all 3 lights w... [Read more]
Mend boiler gas valve pilot light
1

boiler locks out after running for approx 10 mins?

i checked a boiler for a friend, it fired up, run for approx 10 mins then locks out & the pilot light goes out... [Read more]
Mend boiler sealed system hot water
1

Grant outdoor combi 90 v3?

My sealed system loses pressure when I run the hot water. When boiler cuts in the system builds up pressure ag... [Read more]
Mend combi heating pressure
3

baxi 105e combi boiler?

boiler wont modulate when central heating is on causing pressure to exceed 2.5bar, is it the electric safety s... [Read more]
Mend relief valve heating system Worcester
3

worcester 24i won't hold pressure?

My Worcester 24i boiler won't maintain the water system pressure. I have tried to refill but on each occasion ... [Read more]
Mend faulty valve boiler
3

faulty shower valve or boiler?

just fitted a thermastatic bar valve to a system with a chaffuteaux maury boiler. The hot taps activate the b... [Read more]
Mend boiler pressure fault
1

worcester 24i junior red light flashing 1 every second?

hi i have read up on this from loads of post, posable water pressure switch faulty. My boiler when turned on ... [Read more]
Mend boiler lockout vaillant
1

Lock out problem with vaillant turbomax plus?

My turbomax plus 828e locks out under the following circumstances.1 If I draw hot water when the boiler is co... [Read more]
Mend boiler pressure home heating
3

Vokera mynute PRV not working?

Hi The pressure in the boiler had dropped to almost 0bar as it tends to do over time. I filled the system b... [Read more]
Mend boiler heating combi
1

water pressure?

I have had a plumber(SAFE REG) to change 2 pressure values thinking the 1st was faulty but it is still the sam... [Read more]
Mend boiler heating lockout
1

halstead ace high problem?

Hi, I have a problem with my hot water and heating. The Halstead Ace High boiler does not come on when a deman... [Read more]

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend Home Heating Systems ...