- Determine which zone valve operates the area in question by process of elimination. ...
- Listen to the operation of the other zone valves. Listen to hear if the zone valve in question is noisier than your other valves.
- Turn the thermostat in question up several degrees over room temperature to turn on the zone valve. ...
- Listen to hear if the zone valve is making noise, or is making too much noise, and not opening the valve.
- Use your pliers to lightly move the stem sticking out of the center of the valve body back and forth.
- Set the valve head gently somewhere so the electrical terminals are not touching metal. Turn the boiler switch back on.
How to change a zone valve?
How to Replace a Boiler Zone Valve
- Locating the Boiler Valves. Locate the zone valves in your boiler room. ...
- Finding the Zone Valve. If your zone valves aren't labeled, then you will need to find the one in question which is causing you problems.
- Temporary Fix. ...
- Shutting off the Water and Boiler. ...
- Removing the Zone Valve. ...
- Replacing the Zone Valve. ...
- Testing. ...
How to repair a Honeywell zone valve?
How to Troubleshoot a Honeywell Zone Valve
- Identify the Zones. Determine which zone valve operates the area in question by process of elimination. ...
- Listen for Potential Problems. Listen to the operation of the other zone valves. ...
- Turn Up the Thermostat. ...
- Remove a Malfunctioning Valve. ...
- Manually Test the Valve. ...
- Test the Valve's Response. ...
Can I put a zone valve on a monoflow system?
Verified Customer Yes you can put a zone valve on a monoflow system. If it's a short enough zone without too many radiators. Be carefull with monoflow systems, they have certain rules you must follow for them to work correctly. I very rarely use zone valves anymore, but that is my personal preference.
How to replace a temperature and pressure relief valve?
How to replace a temperature and pressure relief valve
- Turn the power off (electricity and gas supply if applicable).
- Attached one end of the garden hose to the drain valve and terminate the other end outside or to the floor drain.
- Close the water supply on the shut-off spigot.
- Open the TPR valve, then open the drain spigot. ...
- Close the drain spigot when the water stops running.
How do I know if my zone valve is broken?
If your boiler is working nicely, but you have a problem with either the hot water or the heating not working, it could be your zone valve that is malfunctioning.
Why do zone valves fail?
The zone valve opens and closes according to the temperature in the room as determined by the thermostat and your settings. Sometimes the zone valve will fail to operate properly. This can be caused by a malfunctioning part on the valve itself or by a faulty thermostat or a faulty connection between the two.
How do you replace a zone valve HEAD?
0:593:26No Heat? How to Replace & Troubleshoot a Taco Zone ValveYouTubeStart of suggested clipEnd of suggested clipVery easy to do just unscrew each one and then you're going to pull the wires back I don't like toMoreVery easy to do just unscrew each one and then you're going to pull the wires back I don't like to ever have wires touching. So it's a good idea to spread them apart a bit just to be. Sure.
How do you rebuild a Honeywell zone valve?
2:325:20How to Rebuild HONEYWELL ZONE VALVE - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt's very important you get it to stay in the groove. Sometimes it takes a second to get it all theMoreIt's very important you get it to stay in the groove. Sometimes it takes a second to get it all the way around. To hold in place. So now remember i told you that one side of the valve has two dimples.
Can you manually open a zone valve?
0:271:20Manually opening a zone valve - YouTubeYouTubeStart of suggested clipEnd of suggested clipBut you can manually. Move this leaver across and lock it fully open like that and it would allowMoreBut you can manually. Move this leaver across and lock it fully open like that and it would allow flow for it.
How much does it cost to replace a heating zone valve?
Faulty zone valve: Zoning valves are what keep your home at a nice even temperature. When a zoning valve goes bad, you may experience loss of heat in parts of your home or extreme temperatures in others. The cost to repair a zoning valve usually ranges from $350 – $800+.
How do you solder a zone valve?
1:4625:34Installing Zone Valves Soldering And Wiring - YouTubeYouTubeStart of suggested clipEnd of suggested clipDo you want to try to remove those little metal shavings. So they don't get everywhere doing theMoreDo you want to try to remove those little metal shavings. So they don't get everywhere doing the outside what that also does is it helps you know i'm seeing it's leaving some shavings. There.
How do you replace a zone valve actuator?
0:052:23Replacing Zone Valve Actuators - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd how to remove and replace their actuators for the tako heat motor zone valves you twist theMoreAnd how to remove and replace their actuators for the tako heat motor zone valves you twist the actuator. And then it should come right out and you're bringing the new one line up the pegs.
How do you remove a Honeywell zone valve head?
0:000:27Honeywell Zone Head Replacement - YouTubeYouTubeStart of suggested clipEnd of suggested clipFor the Honeywell ozone valves you need to remove the cutter. Then you have to unscrew the actuatorMoreFor the Honeywell ozone valves you need to remove the cutter. Then you have to unscrew the actuator from the valve body there's two screws stagg and only from each other.
How do you test a zone valve?
2:545:481ST * HOW TO TEST * NO HEAT *Zone Valve-End Switch ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipMake sure that both of them are set below the room temperature of both rooms. And then I turn thisMoreMake sure that both of them are set below the room temperature of both rooms. And then I turn this thermostat.
How do I know if my taco zone valve is bad?
2:408:05taco zone valve testing - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd take that wire off and see if that's the problem. Might just be a bad. Head. There we go that'sMoreAnd take that wire off and see if that's the problem. Might just be a bad. Head. There we go that's a problem right there's a bad.
How do you check a Motorised valve is working?
4:447:42No heating? Check the motorised valve. - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo another important piece to check is if this valve paddle is working okay as you can see there's aMoreSo another important piece to check is if this valve paddle is working okay as you can see there's a little piece on there that the motor attaches. To see if it turns freely it should turn easily.
How does a zone valve work?
1:0011:02How a Zone Valve Works - Hot Water Heating - YouTubeYouTubeStart of suggested clipEnd of suggested clipHot water flows from the boiler. Through the valve if it's open and circulates around the house andMoreHot water flows from the boiler. Through the valve if it's open and circulates around the house and then back to the boiler and gets reheated that's the cycle of heating.
Explanation of Zone Valves on Heating Boilers - Controlling Hot Water Heat
Our photo at left shows a Honeywell (TM) zone valve installation.Heating water piping in a building, particularly where hot water baseboard heat is...
Zone Valve Defects Checklist
1. Zone valve does not work - jammed, stuck, does not open in response to call for heat at that zone. Provided the wiring and thermostat are correc...
Banging Heating Zone Valve: Backwards Zone Valves
Water hammer, discussed in general at WATER HAMMER NOISE DIAGNOSE & CURE, can occur in both building potable water supply systems (sinks, tubs, sho...
5 Simple Zone Valve Diagnostic Steps
1. Mechanically-stuck zone valve motors. If your zone valve has a manual override lever you can test the valve to see if it will open and shut. (Ou...
Boiler Component & Heating Zone Valve Life Affected by Boiler Water Chemistry
Watch out: for boiler water chemical conditions that could contribute to zone valve failure. These include highly-corrosive water, improper pH, and...
Zone Valves on Indirect-Fired Domestic Hot Water Heaters
Indirect fired hot water heaters, in some designs, use a heating coil located in the bottom of the hot water tank to heat the domestic hot water (u...
Heating Zone Valves: Normally-Closed vs Normally-Open Designs & Applications
Dennis B. Hoff said: (2/3/3014)We have a hot water boiler with 7 normally open Honeywell zone valves. They are mounted on the hot side of the boile...
Ask A Question Or Search InspectAPedia
Use the "Click to Show or Hide FAQs" link just above to see recently-posted questions, comments, replies, try the search box just below, or if you...
Why won't my zone valve close?
Troubleshooting a zone valve that won't close is important to ensure the proper operation of your heating unit. If a zone valve is not working correctly it can increase your heating cost, decrease the life of your heating unit, and not heat the space properly.
What happens if the cover closes on a power valve?
If the cover closes then that confirms that you have a bad power head. If the valve stays open you may want to continue to troubleshoot for blockages or damage to the valve head. Replacing a power head is fairly easy and doesn't take many steps.
Why cut off water to boiler?
Before starting troubleshooting cut off water to the boiler to avoid injury and burns from hot water or steam. Caution must be taken when working with boilers because of the pressurized what that it takes to make the boiler work. Continue reading below Our Video of the Day.
What is zone valve?
Zone valves installed on the hot side or boiler -out side of the heating piping loop, exposing the valve to higher and more stressful temperatures. Zone valve installed backwards: the valve must be installed so that the arrow on the valve body matches the direction of flow of the hot water.
What does it mean when a zone valve covers off?
Zone valve with covers off - may indicate overheating and jamming
What does a clogged relief valve mean?
A clogged relief valve means that the heating equipment is unsafe to operate, risking a BLEVE. See BLEVE EXPLOSIONS for details. If your heating system is giving a loud BANG when the zone valves open or close (and circulator starts or stops) take a look at the location of the zone valves.
How many valves does a Honeywell boiler have?
We have a hot water boiler with 7 normally open Honeywell zone valves. They are mounted on the hot side of the boiler. We have problems with the valve motors quitting (after about a year) and have to be replaced.
Why does my heating system bang?
Banging heating pipes when the valve is closing or closed while another heating zone is calling for heat (more likely with fast-closing zone valves and with zone valves on zones operating at higher pressure or faster water circulating rates) (Some experts opine that a White Rodgers zone valve is more quiet-operating)
Why is my zone valve backwards?
The zone valve (installed backwards) may have trouble closing against the force of water being pushed or pulled by the circulator pump - a likely problem since in a zone valve system typically one circulator serves multiple zones (and zone valves) A flow restriction if you install the valve backwards.
How to know if a zone valve is open?
You can know that the valve is open if hot water is felt in the pipe on the output side of the zone valve. Zone valves overloading their power transformer: powering too many zone valves from a single low voltage transformer can damage both the zone valves themselves as well as the transformer.
How does Honeywell zone valve work?
Honeywell zone valves are pretty straightforward on how they work. I can’t say about the valve you have right now, but all the valves I have worked, along with valves powered by actuators, come either Normally Open, Normally Closed, or Modulating. The power to the motors for these valves typically remains constant until the circuit is open, ...
What is a zone valve end switch?
A zone valve end switch is a switch that closes when the valve opens. On a call for heat from one of the zones in the boiler loop, the zone valve opens. Once the valve fully modulates open, that action closes a switch on the end of the valve, called an end switch.
How does a spring return valve work?
The spring return moves the valve to the closed position. I can also only surmise this question is out of pure curiosity on how the valve works. Since the valve is simple and straightforward on the operation, troubleshooting is similarly straightforward. Installation is simple with both the hot water boiler piping loop and the wiring. It is important that the valve is installed according to the flow arrow. The head should be removed for sweat connections to prevent damage. Once the soldering is completed the head replaced on the valve. Wiring involves three separate connections: The transformer for 24-volt power, the thermostat to provide control, and the end switch to control the circulator pump.
What is the problem with the Honeywell zone valve?
Honeywell Zone Valve Problem - The bottom line answer to your question is the thermostat controls the opening of the valve. When the thermostat satisfies the motor is de-energized and the valve closes by a spring return.
Is Honeywell 8043 closed?
The power to the motors for these valves typically remains constant until the circuit is open, whatever method is used to control the valve. The Honeywell 8043 is Normally Closed. When it is powered up, it opens. When the power goes off a spring return closes this valve.
Question: why are some zones too hot when the thermostats are not calling for heat
I have a 14zone HWBB system installed during home construction 8years ago. Each room has its own loop and thermostat. I have zones that are hot 10-15 degrees above set points. All check valves were replaced 10/15/15. System worked fine until spring 2015. When I noticed the hot zones
Question: many VA transformer do you need to power 4 zone valves
1 Nov 2015 Dennis Santoro said: How many VA transformer do you need to power 4 zone valves
How to change a zone valve?
Use your pliers to lightly move the stem sticking out of the center of the valve body back and forth. The stem controls a small paddle which opens and closes, controlling water flow. If the stem moves freely, then the valve body is okay. If the stem is hard to turn, or won't turn, then replace the entire zone valve assembly.
How to determine which zone valve operates the area in question?
Determine which zone valve operates the area in question by process of elimination. Use the other thermostats to operate the zone valves until you have determined what thermostat controls what zone valve. Label each zone valve appropriately for future reference if further troubleshooting is required.
How to turn on zone valve on boiler?
Turn the thermostat in question up several degrees over room temperature to turn on the zone valve. When you return to the boiler you now know for certain the thermostat is calling for the zone valve to operate.
What does the zone valve do when the thermostat calls for heat?
When the thermostat calls for heat, the zone valves opens and turns on the water circulating pump to allow water flow to the area. At the same time, the zone valve sends a signal to the boiler and starts the burners. Warm water will only flow to the zone or zones indicated by individual thermostat.
What is a Honeywell zone valve?
Honeywell zone valves are composed of two main components. The brass valve body, which is soldered into the water lines, and contains the mechanical moving parts of the zone valve. The valve head contains the electrical components and the wiring terminals. The valve head can be removed and replaced independently of the valve body.
What does it mean when a boiler valve is not replaced?
Not having to replace the valve body means not having to solder pipes, drain the boiler and purge air back out of the lines. Be careful. Any shorted or crossed low voltage wire can burn out expensive controls such as the boiler's ignition system, gas valve, pump and safety controls. Advertisement. Things You'll Need.
How to change valve head on boiler?
Set the valve head gently somewhere so the electrical terminals are not touching metal. Turn the boiler switch back on. If the valve head still chatters, then replace the head. If the valve head receptacle does not move as if opening the paddle, then replace the head.
Checking The Power Head
- If the motor to the power head has gone bad, the valve can be stuck in an open position. Using a small hammer tap the valve lightly. If the cover closes then that confirms that you have a bad power head. If the valve stays open you may want to continue to troubleshoot for blockages or damage to the valve head. Replacing a power head is fairly easy and doesn't take many steps. Y…
Checking The Manual Lever
- If the motor appears to be working properly on the power headyou may need to re-engage the manual lever. If the lever moves freely that can indicate a problem and you can try to following to correct it. Behind the valve flange you should see a small plate with a metal spring attached to it. Reposition the metal plate until they snap and the valve closes. If the valve opens and closes ea…
Replacing The Valve Assembly
- If checking the power head and the manual lever doesn't correct the problems with the zone valve you may need to replace the entire valve assembly. This is the easiest way to replace any internal parts that may be damaged or worn. Replacing the assembly will require you to solder a new valve into place. Adapter kits can be purchased to avoid this, ...