One of three zones not heating, even with manual valve on

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  #1  
Old 02-21-14, 03:28 AM
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One of three zones not heating, even with manual valve on

We have a comfort zone 2 thermostat with three zones and one of the zones is not heating. The other two zones work fine. We opened the valvle manually in the cold zone and activated the heat in the other two zones but heat wont come on in the third. The pipe will get hot in the cold zone and the small pump underneat warms up slightly. The pump for the cold zone does not have a lever.
We think the problem started when the heat and cold air were acidentally turned on at the same temperature. Does that mean that the valve automatically shut off? How do we activate it? It s been 18 hours and we are calling the dealers as well. Thank you!
 
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Old 02-21-14, 06:59 AM
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Hi Blue,

I'm a little confused by your description...

What is the make and model of the boiler you have?

Are these hot water baseboards?

Is the one that is not working the top floor?

How is it possible to turn both heat and cool at the same time?
 
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