Recommend a 2 channel timeclock please

[jay sean]

Hi I have a 2 year old honeywell ST9400C programmer which when you put the hot water and the central heating on (YPlan system) the hot water does not heat up.
Can any one recommend a half decent replacement please.
Thanks
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[i=p/u]

Hortsman .....

 

[onions1066]

Hi I have a 2 year old honeywell ST9400C programmer which when you put the hot water and the central heating on (YPlan system) the hot water does not heat up.
Can any one recommend a half decent replacement please.
Thanks

why do you assume it's the timer have you tested voltages? If you haven't it points more towards the cylinder stat rather than the timer



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Oh but if you have I would replace it it with another Honeywell they are still one of the best

 

[monkeyelectric]

I reccommend another honeywell too if it does need replacing but check your voltages first, honeywell have a good app with all the wiring diagrams in it, very handy!

 

[jay sean]

why do you assume it's the timer have you tested voltages? If you haven't it points more towards the cylinder stat rather than the timer

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Oh but if you have I would replace it it with another Honeywell they are still one of the best

I googled the ST9400C programmer and lots of people have had problems with it, hence I am in two minds.

 

[onions1066]

I googled the ST9400C programmer and lots of people have had problems with it, hence I am in two minds.

Problem is people only tend to put reviews on line when they have bad stories, they must be a really small percentage of clocks installed, I had the unfortunate task of wiring central heating for a couple of years and fitted hundreds of these Honeywell clocks and never really had any problems to be honest. So if I was fitting a clock in my own house it would be a Honeywell

 

[jay sean]

I used the fault finding section from the honeywell book, and replaced the faulty timer with a 'good' timer, also checked the 3 port valve

 

[onions1066]

I used the fault finding section from the honeywell book, and replaced the faulty timer with a 'good' timer, also checked the 3 port valve

So you've already replaced it?

 

[jay sean]

Ive fitted a temporary timeclock for the time being, a siemens rwb2, But I want a digital timeclock permantly