If the relay does not pull in, the problem is in the relay or the wire to the relay. When a signal is sent from the zone's thermostat to the valve a wax piece inside the valve heats and expands. So, the fact that the valve remained open I don't think is related to a problem with the valve. T. TONK249. Replacing the assembly will require you to solder a new valve into place. Then it was time to get my plumbing hat back on, and replace each zone valve. Available in 3/4 inches or 1 inch, two port configuration. Also applies to ACL Drayton, Iflo and British Gas Motorised Valves. Also, look for a name on the valve that indicates the manufacturer. An open valve will cause hot water to run through the heating zone whenever the furnace turns on. Job done, and I have to say, an enormous sense of satisfaction at having solved a problem that a few days earlier had me scratching my head in confusion. This motor can sometimes break or wear down, and the valve will stay closed or open. Make sure the thermostat setting for each zone is where it should be, and if one zone is still too hot or cold, an electronic zone valve needs to be replaced. They feature universal thermostat compatibility, and their simple layout eliminates problems caused by incorrect wiring. Replacing the zone valve motor is a simple job. Usually, the water pass through two exits. Taco Zone Valve Controls Taco Zone Valve Controls (ZVCs) simplify wiring complicated controls. There are four major zone valve manufactures. $58.45 $ 58. in a split level ranch home.. One for the finished basement and two for the 1st floor ( upstairs), It is obviously a split off. Next Last. When I told him they were Drayton he said he was always having problems with faulty Drayton zone valves (sorry Drayton, I’m just repeating what he said!) This is less complicated than you would think, and is simply a matter of connecting a hose pipe to the outlet valve on the radiator located nearest the back door, and then opening up the bleed valves on the (in my case upstairs radiators). The first is that in plumbing in the new valves it’s important not to grip the valve head (basically the metal case that contains the motor and electrics). 1 of 2 Go to page. More Buying Choices $55.56 (2 new offers) Amazon's Choice for zone valve. You don’t want to over-tighten a compression joint, but you want it to be reassuringly tight. Valemo V2313-A1S Motorized Zone Valve, 2-way, 3/4" Sweat, Normally Closed, 24 VAC with End Switch. Sometimes the zone valve will fail to operate properly. Based on what I told him he said he thought it was almost certainly these zone valve actuators that were faulty. When replacing the assembly always clearly mark all the parts as you go along to make for … Boiler Zone Heating Circulation Problem - Hello, I have a Peerless boiler and recently it had been inspected by a buddy who has been in the business for 35+ years. Discuss Zone Valve Replacement Price guidance in the Plumbing Forum | Plumbing Advice area at PlumbersForums.net. Underfloor Heating Valve Actuator Problems: it could be that there is a sticky pin valve underneath an actuator. It just dawned on us after a couple of slightly chilly days in the house, that the heating wasn’t coming on properly. For example, in a house, the main floor may be served by one heating zone while the upstairs bedrooms are served by another. This is the easiest way to replace any internal parts that may be damaged or worn. The first job was to drain the pressurised central heating system. But before we get into the specifics of replacing a zone valve, we need to be familiar with the types of problems associated with zone valves. The new Honeywell Zone Valves now in position. We provide flow with low pressure drop and overall lower power consumption. You have to attach a spanner onto the valve body at each port whilst tightening up the nuts. There are no gears to strip, or wax conductors to break down. Bien que son installation soit relativement simple, certains réglages ou options peuvent avoir échapper à certains d’entre vous. Disponible à la vente depuis le 28 juin 2019, le Valve Index continue petit à petit de séduire les consommateurs comme nous l’indiquent les derniers chiffres de Steam. Jammed zone valve. 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. FREE Shipping. He installed a new pressure reducing valve in the rear which was leaking very little. I just moved into my grandparents' apartment (they live out west and are renting it out to me) and the zone valve (Edwards Engineering Zone a Matic) would occasionally stick open and the heat would get up to 90. Zone Valve Problems. Removing each valve was a little tricky as the 22mm diameter copper pipework that supplies water through the valve is slotted into each valve. If the zone valve is stuck closed, hot water may not reach the entire system. If so, then turn off the power to the boiler system. The valve shown in the photos here is an anti-siphon type valve, which is a type commonly used on home sprinkler systems. I have 3 zone valves. If no water goes to its zone, it is highly possible that a valve has been jammed and in need of professional checkup; the manual lever of the valve is in the “on” position. Consequently, if you're getting a continuous voltage to the zone valve motor, then the zone valve will remain open. In order to achieve this, a thermostat is placed in each room (or zone) that you want to heat. So with all that done, it was simply a matter of refilling the heating system – as to how to do which, you might like to check out my earlier blog on how to bleed a radiator. Most zone valves run on 24 volts. Zone valve problems come with the convenience of zone heating. 4.5 out of 5 stars 51. One of the zones functioning might get less pressure than the other one. You can use a silicone spray or a long pair of pliers to free the pin if it is stuck down. Status Not open for further replies. Messages 14. Keep in mind that too much air in your heating system can also cause a loss of efficiency to the point that the zones will no longer heat properly. Zone valve problems can be caused by any number of … However, if you are buying or renting a home with a hydronic system, you should inspect the zone valves. FREE Shipping by Amazon. Honeywell Motorised Valves — Problems and Fault Finding. Press the tab beneath the zone head to allow you to twist the valve counter-clockwise and remove it from the body. 4. Sometimes the zone valve will fail to operate properly. Boiler Zone Heating Circulation Problem - Hello, I have a Peerless boiler and recently it had been inspected by a buddy who has been in the business for 35+ years. I should explain we’ve got a Worcester Bosch oil system boiler that heats the hot water and separately, the central heating system. $121.25 $ 121. The 2 problems I have run in to are. When the zone valve gets the message that the heating zone needs heats, a small motor will open up the valve and hot water will pass through. One the part of the zone valve that is pushed by the head gets stuck and will not move freely, this will cause the power head to pop or burn out. Luckily there was just enough play in the pipes for me to manipulate the faulty valve off the pipework. So he suggested I replace both actuators with Honeywell V4043 zone valves. This can be caused by a malfunctioning part on the valve itself or by a faulty thermostat or a faulty connection between the two. This can result in one part of the building being extremely warm while the other will be extremely cold even without the request of the temperature to be changed. Yours may be leaking or stuck and needs replacing troubleshooting. Solenoid valve troubleshooting: the most common failure modes. and then after a few silent moments, relief as I heard the reassuring sound of the boiler firing into life. Often, the malfunction of a solenoid valve can be attributed to easy to fix issues, such as dirt in the valve (80% of the cases). When the thermostat satisfies the motor is de-energized and the valve closes by a spring return. Also, because of the electrical work associated with this type of repair, I recommend calling a trained service technician to replace the faulty zone valve unless you are absolutely clear about what you are doing. There are a number of particularly conspicuous zone valve problems you should be on the lookout for: The zone valve is jammed or stuck. 25. Honeywell Motorised Valves — Problems and Fault Finding. In the case of a radiator problem … When I did the same with the Heating button, nothing happened. Also applies to ACL Drayton, Iflo and British Gas Motorised Valves. We have found that most problems occured because of dirty contacts on the controller. Most zone valves run on 24 volts. in a split level ranch home.. One for the finished basement and two for the 1st floor ( upstairs), It is obviously a split off. In a quandary I contacted my boiler service engineer to see if he could shed any light on the problem. No brushes involved! Yikes! Honeywell zone valves offer the flexibility to regulate temperature in different parts of your home. Jun 22, 2017 #1 Hi all, I know a difficult one to answer but we have 2 HW cylinders and both have 2 zone valves. If the motor is forced to draw too much current (in this case probably by excessive mechanical resistance in the valve mechanism) then the windings will overheat and are likely to eventually develop an open circuit failure. Honeywell Zone Valve Problem. A quick call to the Worcester Bosch sort of confirmed this. Zone Valve Defects. One of the biggest problems with troubleshooting a zone valve issue is figuring out what part of the system is having a problem. that the boiler was fine. The only important thing to observe is that the valve must not be mounted so that the valve head (the metal box you can see below with the danger sign on it) is below the horizontal level of the pipework, as in the unlikely event of a leak, a safety hazard could result. This is the Taco zone valve body, sometimes this part of the zone valve fails. The actuator is the mechanism that causes a device to operate. The Honeywell motorised valves we see most commonly in the UK are the Honeywell V4043H zone valve (Honeywell 2 port valve) and the Honeywell V4073A mid-position valve (Honeywell 3 port valve). Solving motorised valve problems: In this video, Roger explains how a motorised valve works and discusses how you can easily diagnose and repair a motorised valve, avoiding the need to buy a costly replacement. The zone valve requires an electrical connection in order to operate properly so be sure to check for a blown fuse before getting too deep into the replacement process. The water in the radiators and connecting pipes then simply flows out through the hose pipe. Danger Changing a zone valve can be dangerous, you can be scalded, or electrocuted (they are not all only 24 volts) It is best to have a professional do it for you. Turn the heating system on and keep an eye out for the following issues. CTRL + SPACE for auto-complete. Notify me of follow-up comments by email. Then I moved the manual lever on each valve head back to ‘AUTO’, switched the power back on, set the dial thermostat to maximum. There are four major zone valve manufactures. With all power switched off, and the central heating system drained, I then set about connecting up the new zone valves. Please let us know if you like our Plumbing Basics and Tricks of the Trade videos. You may need to troubleshoot the problem from a few different angles before you can determine the exact cause of the problem. When two or more zones are functioning together, this might create some problems. The offending Drayton Zone Valve Actuators – now removed. To do this, I had to loosen the nuts on the zone valve compression joints, with a spanner clamped behind the valve to take the strain as I loosened each nut. So he suggested I replace both actuators with Honeywell V4043 zone valves. We have found that most problems occured because of dirty contacts on the controller. Make sure that the zones of your sprinkler system are working one at a time to make sure there is no splitting of water pressure that allocated for one valve. The zone valve opens and closes according to the temperature in the room as determined by the thermostat and your settings. Change the Valve Motor. You will want to know the basics of how to replace a zone valve if you have a boiler/radiator heating system in your home. Leaking around a zone valve could be caused by several issues: On valves where the anti-siphon device is built into the valve, the problem may be resolved simply by tightening the screws holding the cover to the body of the valve. Please read our Legal Disclaimer. If no water goes to its zone, it is highly possible that a valve has been jammed and in need of professional checkup; the manual lever of the valve … Our zone valves are 100% made in the United States. The great thing about hydronic heating systems is the ability to control the temperature in individual zones in your house. The Honeywell motorised valves we see most commonly in the UK are the Honeywell V4043H zone valve (Honeywell 2 port valve) and the Honeywell V4073A mid-position valve (Honeywell 3 port valve). Adapter kits can be purchased to avoid this, but check with the manufacturers directions to ensure proper installation. As you can see, the junction box for the central heating system is a bit of a perplexing spaghetti junction, but by disconnecting each wire of the faulty actuator valve one by one, and then connecting up the corresponding wire for the new Honeywell zone valve (they’re all colour coded) I was able to do this without too much trouble. Your email address will not be published. Get it as soon as Fri, Feb 5. When I told him they were Drayton he said he was always having problems with faulty Drayton zone valves (sorry Drayton, I’m just repeating what he said!) Honeywell V8043 series zone valves are normally closed valves, and open when 24 VAC is applied to the motor leads. Honeywell zone valve troubleshooting is something that you may have to deal with if you have a radiator system in your home. So when I pressed the Hot Water button on the programmer there was a reassuring click followed by the distant hum of the boiler firing into action. I was operating pretty far out of my comfort zone on this one, but luckily I have fairly recently replaced our bathroom single handed, and in so doing, learnt quite a lot about plumbing on one hand, and the intricacies of draining down our central heating system on the other. AMZ is designed to be used in HVAC or CH applications. This is one of the easiest Weil McLain boiler troubleshooting issues to diagnose. Typical Anti-Siphon Type Solenoid Valve Remove the solenoid from the valve. It could be the thermostat, the zone valve or even a wiring issue that is causing the problem. In multiple zone heating systems with end switches, the end switches on each zone valve will typically be connected in parallel so that the closing of ANY end switch will allow 24 VAC power to flow to the boiler's controller to fire up the boiler and turn on the circ pump. Be aware not to replace the existing 24v DC zone valve with a 24v AC zone valve unless you plan on replacing the entire controller as well. If you suspect a service problem is caused by a faulty valve, follow these procedures to check its operation: 1. Danger Changing a zone valve can be dangerous, you can be scalded, or electrocuted (they are not all only 24 volts) It is best to have a professional do it for you. Carbon Monoxide Alarm Triggered Most solenoids unscrew counter-clockwise to remove. 4.5 out of 5 stars 70. There are a number of particularly conspicuous zone valve problems you should be on the lookout for: The zone valve is jammed or stuck. Brand-new zone valves do not typically have problems. A thermostat mounted in each desired location controls a specific Honeywell zone valve. Leaking can be caused by a torn or damaged diaphragm inside the valve. For example, Honeywell makes many different varieties of zone valves. Taco T571-2 3/4-Inch Gold Series Zone Valve. In the interest of improving efficiency and occupant comfort, such systems are commonly divided up into multiple zones. Result – motor has burnt out. The ElectroZone controller converted ac to dc for zone valve operation by means of a 60 VA transformer and rectifier .The 24v DC zone valves did not have end switches . It’s a bit of an acquired art to know how tight to go with the nuts, and something experience helps with, but you basically keep tightening until the nut just stops moving. Be careful of the wiring. The trouble was that when I got my wife to alternately click on the Hot Water and then Heating, each valve whirred reassuringly into action, which made me a bit dubious that these could be faulty. If the zone opens but the relay does not pull in, jump out the end switch on the zone valve. Honeywell Zone Valve Problem - The bottom line answer to your question is the thermostat controls the opening of the valve. 1; 2; Next. With the faulty Zone Valve Actuator still in position on the heating pipe (back right, top), I set about wiring in the new Honeywell zone valves. It is important to keep in mind that when working with a radiator system you run the risk of scalding, burns or even electrocution if you do not understand what you are doing. Some valves produce noises even when operating properly, which is why it is important to be able to recognize whether the valve is operating normally or there is a problem with the solenoid valve, control circuitry or plumbing. This allows you to heat the areas of the home that you use the most and keep temperatures lower in rooms that you are not using. No Heat in a Zone / Too Much Heat in a Zone . Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window), Central heating problems – faulty zone valves. The long lasting Automag Zone Valves are powered closed, therefore if power fails, our valve will automatically open. a few days later to pick up the new zone valves and some inhibitor (which he suggested I put into the system whilst I was replacing the valves. The ElectroZone controller converted ac to dc for zone valve operation by means of a 60 VA transformer and rectifier .The 24v DC zone valves did not have end switches . As it expands it puts pressure on a valve mechanism that -- as it pushes down -- allows water or steam through the valve and into the zone's heating lines. The Taco Zone Valve Controls should be used in coordination with 2, 3, or 4-wire zone valves. 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) The last thing that you want is to do any more damage to your heating system than you already have. There is a 24 volt transformer some place near or on your boiler that powers the zone valves. You may need to troubleshoot the problem from a few different angles before you can determine the exact cause of the problem. The basic component of a zoned heating system is a zone valve, which controls the flow of water in a hydronic heating system. Flip the zone switch to closed. Identifying zone valve problems. Noisy solenoid valves are sometimes merely a nuisance, but they may also point to some problems that should be addressed to prevent valve failure. This can be caused by a malfunctioning part on the valve itself or by a faulty thermostat or a faulty connection between the two. If the relay pulls in, replace the end switch or the head. A zone valve is a specific type of valve used to control the flow of water or steam in a hydronic heating or cooling system. In a range of on - off motorised zone valves Danfoss offers AMZ 112/113 actuators. One of the main problems of the zone valves is that due to multiple of them installed in one single building at times, the various types of requirements might make the zone valve to malfunction. Thirdly, whilst the Drayton zone valves had to be positioned with the flow direction in through ‘Port A’ and out through ‘Port B’ – which basically meant the hot water zone valve was upside down and the heating zone valve the right way up, it’s not critical which direction the Honeywell zone valves are positioned. I then applied some Fernox jointing compound (also left over from my previous plumbing exploits) to the olives on the pipework before tightening the nuts back into place on the new valves. The cap structure on the right side of this valve is the anti-siphon device. My attention then turned to the Zone Valve Actuators – motorised valves that open and close depending on whether I’ve asked the boiler to provide heating or hot water.