Question about Honeywell Heating & Cooling

Open Question


Posted by on


2 Suggested Answers

  • 2 Answers

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

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 3 Answers

SOURCE: gravity feed boiler/ american standard model#g27dpgc

your make up water pressure is greater than the safety relief pressure. The safety should be 30psi lift. the makup usually goes through a regulator called an automatic makeup valve. these valves operate infrequently on a closed system and get rusty. They stick. If yours is stuck open, then your makeup water pressure which is probably greater than 30psi is overpressuring your boiler.

Posted on Sep 30, 2008


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My pressure relief valve keeps blowing more so when it is hot any ideas please

Pressure relief valves open on high temperature as well as high pressure. They do go bad and are replaceable.

Consider calling the plumber. It is not very expensive part and the plumber can change it quickly.

If you just want to do it yourself:
  1. Write down the make and model of the water heater.
  2. Go to a real plumbing store and buy a new one.
  3. Turn off the heat source (the gas or electricity)
  4. Turn off the water inlet and open a hot water valve at any sink to take the pressure off the heater.
  5. Remove the old relief valve. It may take a long handled wrench.
  6. Install the new pressure relief.
  7. Close the sink valve.
  8. Turn on the water and check for leaks.
  9. Turn on the heat source.

Good luck.

Apr 11, 2015 | Water Heaters

1 Answer

Leaking relief valve on solar panel

I had to replace mine a few years ago. Just look on line. Search for pressure relief valve, or add solar. You will get a lot of responses. Comparison shop and buy. On line auctions work well also.

Mar 07, 2014 | Caleffi Solar Collectors

2 Answers

Fuel tank pressure relief valve

You have some otyher issue here besides the pressure problem.

Jun 22, 2013 | 1995 Geo Prizm

1 Answer

Water dripping from blowpipe

It is normal for water to drip out sometimes from the pressure relief valve outlet pipe. If it drips continuously then open and shut the pressure relief valve several times so the pressure relief valve shuts off properly.
If this does not fix the dripping problem then the pressure relief valve is faulty and needs to be replaced.

Apr 02, 2013 | Water Heaters

3 Answers

Is the reed valve part of the pressure switch

relief valve should only open in a over pressure condition. If it is opening prior to reaching pressure ....replace it.

May 21, 2012 | Air Tools & Compressors

1 Answer

Pressure releif valve leaking

Hot water pressure relief valves serve two functions. The first is to remove high-pressure water from the hot water tank. The second function is to act as a high temperature valve to remove water that exceeds a predetermined point for the valve. Both of these relief settings are preset at the valve factory. Many pressure relief valves will come with a metal tag that identifies these release points. If you're attempting to remove the hot water heater pressure relief valve, pay careful attention to ensure that you replace with the correct valve.

Your hot water heater has a pressure relief valve safety mechanism. When pressure inside the water tank exceeds certain limitations, the valve opens up to allow the pressure to be released. A faulty pressure relief valve will not release excess pressure, which could cause extensive damage to your home. You should test the hot water heater pressure relief valve once every six months to ensure proper operation. If the pressure relief valve fails the test, replace the valve with a new one immediately

Locate the pressure relief valve on your hot water heater. The pressure relief valve has a lever handle on top with a drain pipe attached to it. The pressure relief valve is most often on the side of the water tank toward the top. Newer models of hot water heaters have the pressure relief valve on top of the water tank.

  • Inspect the area around the pressure relief valve for signs of leaking water. If there is leaking water near the relief valve connection, replace the relief valve. If no leaking is evident, proceed with testing the pressure valve.

  • 3

    Examine the area below the pressure relief valve drain pipe. Most water heater closets either have a drain in the floor below the pipe or the pipe is inserted into another pipe to direct the water out of the home. If the end of your drain pipe is not in another pipe or there is no drain in the floor, place a bucket under the drain pipe to catch water when you test the pressure relief valve.

  • 4

    Pull the lever handle on the top of the pressure relief valve up with your fingers. A working lever will lift up without difficulty.You should begin to hear water going through the drain pipe. Slowly release the lever to shut off the pressure relief valve. The pressure relief valve is good. If you did not hear water running through the drain pipe, lower the lever on the pressure relief valve and replace the valve. If the lever is difficult to raise, do not force the lever. Replace the pressure relief valve.

  • Now with all that said if you have a closed loop water supply system and you have a pressure vessal/expantion tank it may have gone bad and is making the TP valve leak. you can call your water provider to see if you have closed loop system.

    Feb 04, 2011 | Whirlpool Water Heaters

    1 Answer

    Hello, I need to replace a pressure valve on my on my water supply tank by my well. There is no high temperature in the system. Does this valve have one of those sticks that need space in the tank? ...

    Hello,This valve is pressure only.The model XL is pressure & tempature for a hot water storage/heater tank(has the stick).You need to know male or female thread and the relief # setting of the old one.The info is on the tag on the old one.

    Nov 17, 2010 | Watts 3/4 Pressure Relief Valve

    1 Answer

    I have a honda excel 2500 psi , where would the pressure relief valve be located?

    Many of the excel units don't come with a pressure relief valve but instead a thermal relief valve, it really depends on the model number of the pressure washer. You should only replace the thermal relief valve if it is leaking.

    Sep 06, 2010 | Honda Karcher G2400HH-R Pressure Washer

    1 Answer

    I have a ideal mini c24 cobi boiler and it isnt holding pressure the are no leaks inside the house it just seems to be releasing the water for the central heating from the blow off pipe outside so i keep...

    So the boiler relief valve is leaking? What is the boiler pressure when the relief valve leaks? The relief valve will have a pressure rating on it. If the relief valve leaks when the pressure in the boiler is lower than the relief valve setting then its just a bad relief valve. If the relief valve is leaking when the boiler pressure gets above the relief valve pressure setting then the relief valve is doing its job and there is another problem. Several things can cause the boilers pressure to go higher than the relief valves setting. It could be a bad expansion tank or one that needs to be drained and re-charged. It could be a bad cold water fill valve that isn't shutting off and is over filling the system, rasing the pressure above the relief valve setting. If this boiler also does your domestic hot water, I have seen where the domestic hot waters heat exchanger has a hole in it and the domestic hot water is mixing with the boilers water and over pressuring the boiler.

    Jan 13, 2018 | Heating & Cooling

    Not finding what you are looking for?
    Heating & Cooling Logo

    Related Topics:

    78 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Honeywell Heating & Cooling Experts

    Bill Long

    Level 3 Expert

    588 Answers

    Paul Carew

    Level 3 Expert

    3178 Answers

    vance jones

    Level 2 Expert

    120 Answers

    Are you a Honeywell Heating and Cooling Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides