In floor heat


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Old 12-23-19, 02:38 PM
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In floor heat

hot water flowing at all times. Checked tstat & taco relay. Working fine Circulating pump is a Taco 700-f5. Circulating water with no power to it. Is there a valve in the pump thatís stuck open? Only thing I can come up with. Thanks
 
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Old 12-23-19, 02:48 PM
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Welcome to the forums.

It should specify integral flow check on the label.
 
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Old 12-23-19, 06:58 PM
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I will. Iím an electrician & far from a plumbing & heating guy so Iíll go check that and go from there thanks
 
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Old 12-23-19, 07:00 PM
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That model can come with a check valve. The numbers after what you've posted determine that.
 
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Old 12-23-19, 07:07 PM
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700-f5. Are all the model numbers. But having a stuck check valve sounds like a good possibility
 
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Old 12-24-19, 10:20 AM
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The pump model on Taco would have IFC in it. If there is no IFC there probably is no Internal Flow Check. Are there zone valves on the radiant loops or flow checks on the system supply pipe.
 
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Old 12-26-19, 10:34 AM
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Small on off valve on every loop. Only one zone. This is only installed in one room. Rest of house runs off separate baseboards.
 
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Old 12-26-19, 11:22 AM
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You're missing something.......
Only one zone for the radiant but what about the baseboards ?

We're going to need a few pictures........ How-to-insert-pictures.
 
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Old 12-29-19, 07:29 AM
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Bed rm. bath. Added on about 8 years ago in floor heat separate run from boiler rest of house original installation. Worked fine until recently.
 
 

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