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I believe I have a taco zone valve that will not open either…

Customer Question
I believe I have...

I believe I have a taco zone valve that will not open either by the thermostat or manually.

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

I think it may be specific to the zone valve

Contractor's Assistant: Do you plan on doing the work yourself?

Yes

Contractor's Assistant: Anything else we should know to help you best?

I have checked the circulator pump, it is working and i have heat in the downstairs zone. I have attempted to purge the upstairs zone and I cannot get any flow through that zone with the zone valve in the manually-on position.

Submitted: 8 months ago.Category: HVAC
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Answered in 1 minute by:
12/31/2017
HVAC Technician: Rick, HVAC Supervisor replied 8 months ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 24,830
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your

issue. First I’ll need some more info so I have a more complete picture of your situation.

Can you move the lever on the valve head down ?

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Customer reply replied 8 months ago
i moved the lever down. no change in temperature on the pipe on the outgoing side of the valve
HVAC Technician: Rick, HVAC Supervisor replied 8 months ago

Ok, if you have no flow out the purge station with the valve open the you have a frozen pipe. There's no way the valve doesn't open if you can move the lever down.

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