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Posted by Tony Hwang on October 20, 2006, 11:42 am
maflatoun@gmail.com wrote:
> Hi,
>
> My furnace is about 6 months old and we started using it just last
> month. I replaced my analog thermostat with a digital one (Honeywell
> CT3200). I've programmed it to go down to 17C when I'm not home and
> after 6PM to go back to 24C. However, when we got home last night at
> 10PM it was 17C. I tried clicking 'Run Program' and the furnace made a
> clicking sound (3 clicks) but no hot air just a humming sound and that
> even stopped. Then I clicked on 'Warmer' button and raised the
> temperature setting to 24C. It ran for 10-15 seconds and then it
> stopped. Clicked on 'Run Program' again and same thing. All you hear is
> the clicking sound. The furnace makes a humming sound but no air. So as
> the last option I clicked on 'Warmer' button and raised the setting 24C
> and clicked 'Hold Temp' and then the furnace began working fine. This
> morning I woke up and it was on 24C as set. So raising the temperature
> to 24 failed, clicking on Run Program failed but raising the
> temperature and clicking hold works. Anyone knows what could be causing
> this? Is it the thermostat or the furnace? Also, the blinking lights in
> the furnace indicate that it's running normal.
>
> Also, there is this setting in my thermostat that says
> 'High-efficiency furnace such as a 90% or greater AFUE (unit) must use
> this setting and under 90% must use this setting. Could this be causing
> it?
>
>
> Your help is greatly appreciated.
>
> Thanks
> Maz.
>
Hi,
You have to configure the thermostat properly after it is wired correctly.
Was it working OK with older thermostat? If it did, most likely the
problem is with new 'stat or you did not install it correctly. All my
'stats are Vision Pro 8000 commercial(house, cabin, my rental condos)
It works like clock work. 24C? That's real WARM. I set mine at
21.0C-16.5C. We have gas fire places as well.
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