Thermostatic mixing valve might not be working

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Old 02-23-19, 05:53 PM
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Thermostatic mixing valve might not be working

I had thought maybe the pump was bad but It looks like the Thermostatic mixing valve might be bad. Leading up to the TMV the water is hot (pipe is hot) going into the TMV. I have two temp gauges one on the supply and return of the radiant floor heat to the TMV. I have turned up the TMV to 180 and neither of the temp gauges show and raise in temp. The pipes don't get hot either. Can this HONEYWELL AM101R-US-1 be repaired. Plus is the AM102R-US-1 the replacement for the AM101R-US-S.By the way the TMV is about 8-9 years old.
 
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Old 02-24-19, 09:37 AM
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This might help you to see what is available. Without pics cannot tell exactly what you have. This will give you options.

https://www.supplyhouse.com/sh/contr...+mixing+valves
 
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Old 02-24-19, 06:47 PM
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I have included a picture from the box it came in. Can you repair these TMV or is it best to be replaced. Is the AM101-us-1LF the same as the one I have AM101r-us-1,just a newer model.
 
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Old 02-25-19, 09:33 AM
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You can look at my previous post and go to the sight posted to see your options for a new valve or repair kit. Below is the same valve you have and the repair kit if you choose. There is a phone number to call if you have questions. They are very helpful.

If you are unsure of your skills you can replace the valve by just unscrewing the unions on the existing and installing the new one. there is no soldering involved of pipes since it's the same valve, making sure of course to shut your water off first. With the kit you have to take the valve apart per the instructions.

https://www.supplyhouse.com/Honeywel...F-Heating-Only

https://www.supplyhouse.com/Honeywel...D-and-R-Models

Hope this helps a little.
 
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