I think my Honeywell CM907 maybe faulty

[James Tennyson]

The problem I have with the CM927 is I have it set for 6.30 till 8.00 in the mornings I have disabled the remainder settings copied each day yet when I come home at 4.30 in the afternoon I find the heating is on beginning to think the clock maybe faulty

 

[Agile]

We don't know what settings you have put into your stat.

Many people don't seem to be very good at programming these although they are my preferred model because they are one of the easiest.

Some people seem to confuse a CM907 with a CM927.

The most common two failure types are a fault on the LCD display and a lack of continuity of the output contacts.

Tony

 

[Steelmasons]

Some people seem to confuse a CM907 with a CM927.


Tony

Exactly the same unit albeit one is RF.

 

[Agile]

Er... yes!

But his heading says CM907 and his text says CM927 !

 

[James Tennyson]

sorry about the confusion its a cm907

 

[Agile]

Well that is the wired version and eliminates any issues arising from the wireless communication.

Tony

 

[steve32]

What temperature have you set it when it goes off at 8.00am

 

[James Tennyson]

I have it set at 20 degrees

 

[steve32]

I have it set at 20 degrees

That's your problem off temperature is set too high

 

[James Tennyson]

Thanks for that Steve what should I set the off temperature.

 

[TCCHeating]

Thanks for that Steve what should I set the off temperature.

Set it to the temperature you don't want your house to get below when your not there. 15 degrees is my suggestion

 

[steve32]

I usually set off temperature at 12/15
on temperature 20/22 according to customers choice

When heating comes on at 6.30am it should be set at 20/22
When heating goes off at 8.00am and all off times it should be set at 12/15
You have 3 on temperatures and 3 off temperatures in a 24 hour period

 

[James Tennyson]

Thanks for that I will give it a go