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Taco 671 2

My zone valves are very slow to open. They are Taco 671-2 model. I can turn up a thermostate and it could take up to an hour before any thing happens. The pipes are cold and there is no water circulating. This only seems to happen when it is very cold outside or if we have a fire in our fire place.

Posted by Anonymous on


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 2692 Answers

SOURCE: Hot Water Overflow

Do you have an expansion tank tank  in the line leading into water heater? If not what is happening is that the water is no longer allowed to go back into the city supply.  You said that you had turned it off while you left so the water heats up and has no place to go so the preasure/ temperature P/T valve  opens and lets out the excess water from the expanded supply (heater water) that has no where else to go. It used to be that the extra expanded water just backed up into the supply pipe and back into the main. That is no longer possible in most places by the  National Plumbing code.    The answer may be to install the expansion tank into the incoming line. You can see then now at  all hardware stores where water heaters are sold.

Posted on Jan 04, 2009

  • 88 Answers

SOURCE: no water from hot water faucet

thanks for your question, sounds to me like you have a frozen line, I used to live in Northern, MN on a well, and had alot of time un-thawing water lines, yes it is continuous flow, sorry for having to say this but you need to immediately start tracing your hot water lines and see if you have any leaks, bulges, or ice forming on the line, tap the line with a screwdriver to hear the difference in sound when you find the frozen section, here is the tricky part, if its (pecks line, plastic) then you need to call a plumber, if copper, you can use a torch to un thaw the line, but use extream caution when doing this as many people has accidentally started fires, my best advise is to call a plumber, hope that helped, please get back to us and let us know what you find, thanks again, mr.grzz

Posted on Jan 21, 2009

  • 234 Answers

SOURCE: wiring a smart control to a taco sr504 to a honeywell L7248.

Set tempture up some so the water will be hoter.

Posted on Mar 18, 2009

  • 2702 Answers

SOURCE: Cold water suddenly shuts off during shower.

sounds like you may have "air" in the pipes and that bang has slamed the water reg valve shut hard

Posted on Mar 28, 2010

  • 43501 Answers

SOURCE: My upstairs air handler is

You have a problem with your fill valve or pressure reducing is not uncommon for these valves to plug up or fail to work right.... this valve's job is to maintain 12 psi in your system.
If you do not have enough pressure it will not push the water to the upstairs air handler...
You also will then need to get the air out of the pipes for the pump to work right after getting the pressure problem fixed...

Here is a tip that will help you with that also...

Valve Pressure Reducing or Pressure Reducing Valve


Posted on Nov 06, 2010

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