Our heating system seems to be operational... specially given the fact that 2 out of the three zones work like a charm.
The zone that doesn't work uses a "Honeywell V8043 E 1012 motorized valve", and since the problem started, we've replaced the motor only... and it didn't work. Now, we've replaced the entire valve, and we still have the same issue. In addition, if we set the valve to ON (instead of AUTO), the heating will work, but it'll warm up too much as there's no governor to tell it to stop heating.
We've also switched thermostats from the zones that work to the non-working one, and no deal.
Can someone please give us some ideas of what to look into to better troubleshoot and determine the root cause for our problem? ... as I'm writing this, it's making me belive that the wiring from the 2nd floor (problem zone) to the basement may be at fault... hope that's not the case. Anyways, any insight will be greatly appreciated.
Thanks,
Gus W.
The zone that doesn't work uses a "Honeywell V8043 E 1012 motorized valve", and since the problem started, we've replaced the motor only... and it didn't work. Now, we've replaced the entire valve, and we still have the same issue. In addition, if we set the valve to ON (instead of AUTO), the heating will work, but it'll warm up too much as there's no governor to tell it to stop heating.
We've also switched thermostats from the zones that work to the non-working one, and no deal.
Can someone please give us some ideas of what to look into to better troubleshoot and determine the root cause for our problem? ... as I'm writing this, it's making me belive that the wiring from the 2nd floor (problem zone) to the basement may be at fault... hope that's not the case. Anyways, any insight will be greatly appreciated.
Thanks,
Gus W.
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