If that's the problem you'll want to replace the zone valve head. However the boiler fires fine and must be getting signals fom other valves within the boiler itself. Not for use with oxygenated water, If the noise is gurgling water sounds there may be air in your heating water piping; 
While typical indirect water heaters use a heating loop encompassing a circulator pump and check valve, some systems may use a zone valve in this piping loop that first opens to let hot water flow though the piping loop (boiler to water heater coil and back to boiler), and second, when the valve has opened, it turns on a circulator pump to cause water movement. These include highly-corrosive water, improper pH, and water with a high oxygen content. like 25psi? Finally, for freeze protection advice for the building, see WINTERIZE A BUILDING ( a link I'll add at the ARTICLE INDEX the bottom of this article ). Check to see if the circulator is being turned on. Just stopping current to the "ON" position will do nothing as the valve stays open. underfloor valve polypipe zone - get the air out of the heating pipes so you won't be air-bound The Honeywell V8043F has these same features. My understanding is that the orange is normally intended as a feed to tell the boiler to fire. The installer surely had a reason for the "normally-open" approach. Joseph Our Comment Box is provided by Countable Web Productions countable.ca, Click to Show or Hide Citations & References, ZONE VALVE LIFE Affected by Boiler Water Chemistry, Honeywell V8043D ZONE VALVE INSTALLATION GUIDE, AIRBOUND HEAT SYSTEM REPAIR by WATER FEED VALVE, WHITE RODGERS 1311 ZONE VALVE INSTRUCTIONS, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, 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, Banging heating pipes and possible valve damage when the valve closes as a consequence of load on or wear of the mechanically-operated valve gate, 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). Reply: Norby, - disconnect andlabel the zone valve wiring connections - with POWER OFF It's possible that there is air in the noisy zone, or that the zone valve actuator motor is buzzing and failing, or that a relay is buzzing;
valve zone heating water boiler system Any advise is appreciated. But if the zone valve problem is not the motor but the actual valve in the valve body - the parts that rotate to either allow or not allow hot heating water to flow through the piping, then what's needed is to cut-out or de-solder the old valve and put in a new one; that in turn also will require cooling down the heating system and draining the zone, the re-filling the zone after the repair, and then purging air from the system after that. frequent source of make-up water, causes the rubber plug by use of zone valves (one per heating zone or area or "loop" of heating piping) which in turn are connected to individual thermostats. Head has been removed and valve now moves very freely using very little finger force. inside the valve to deteriorate and eventually fail. Is reached the thermostat cuts off power and the valve closes (by spring pressure) cutting off fluid flow. or something? by Trevor - how to replace Sparco PowerTrack zone actuators broken into pieces. on AIR-BOUND HEATING SYSTEMS to see how to diagnose and repair the problem. Some writers opine that in some buildings we install a normally-open zone control so that " in the event of power failure or malfunction the suite won't freeze and bust up the plumbing and heating pipes." Use this valve in hydronic systems which DO NOT I took a look at the boiler. But a humming sound may mean that the valve's motor is jamming (needs replacement) OR that a nearby low voltage transformer is humming and will need replacement soon.
I think that this could cause extra heat build up in the motor and cause premature failure along with more power usage. I'm sure it needs to be replaced. The zone valve (Honeywell) which feeds the upstairs kitchen/dining/living/bath (large area) is making noise, overheating, and not opening when the thermostat calls for it to. InspectAPedia tolerates no conflicts of interest. Forgive the slow reply - we've been swamped with questions. zone valve opens but boiler doesn't turn fire up on one of my zones. I would look first for a loose electrical connection and second I would consider replacing the zone valve actuator or motor that may be sticking or failing. Quoting the product literature: Easy servicing because the entire powerhead assembly Bottom line: Both Honeywell and Taco make reliable zone valves. Sketch (left) courtesy of Carson Dunlop Associates. When the circulator pump is running you should be able to feel the heating pipe on the inlet and Outlet side of a zone valve go from being cool or cold to hot. Honeywell V8043C - PN 40003916011 normally closed, also has no end-switch. The motor stops with The water pressure inside of a hydronic (hot water) heating boiler - a building heating system - is typically 12 psi cold and somewhere under 30 psi when the system is at its most-hot. honeywell motorized If the noise is buzzing or clicking from the zone valve motor, then the zone valve itself may be failing. - cut out and sweat in new valves There s/he will install a drain and control valve. Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. When updating this article I'll be sure to include your helpful comment. You'll find articles on all of those in the article index. through the zone. I have 4, old, Sparco PowerTrack zone actuators on my system that are literally broken into pieces. boiler) and a single circulator pump (usually located on the return end of the hot water piping close to the heating boiler). On 2021-06-04 This is the only one of the four models in this series that is a normally-open zone valve. Good practice locates the zone controls and circulators on the return side of the hydronic heating loop. which may help with your question. NC - Normally-closed, and use a signal to open the valve Can I just cut out the old actuators and install the new zone valves on my own? Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. zone valves valve honeywell heating normally heat open closed system applications designs repair inspectapedia failing swapping advise reader question keep I've seen more Honeywell than Taco zone valves installed, but I have no actual zone valve failure rate data that demonstrates one BRAND is "better" than the other. and the Zone valves and Taco circulator pumps are, most-basically, associated with hot water heat delivered through radiators or baseboards or convectors. When changing the thermostat, there are some models that can be wired to operate either type of zone valve: normally closed or normally open. - drain off pressure and water from the lines enough that the piping in the area of work is empty (so it can be soldered) If I disconnect the wiring and leave the zone valve open will it only pump water thru that zone when another zone is open and making the pump run? But IF there is heat coming out of your radiators and baseboards long after the thermostat has stopped calling for heat, then see zone valve honeywell heating water answers questions valves heat parts inspectapedia diagnose bad assembly reviewing originally enjoy were posted Watch out: for conditions that could contribute to zone valve failure. zone valve wiring heating faqs connect wire inspectapedia honeywell controller How do we know that a zone valve is working? WR-1311 type zone valve that uses current both to open and to close the valve. WHITE RODGERS 1311 ZONE VALVE INSTRUCTIONS [PDF], On 2021-05-18 by Jon Green - two wire thermostat vs White Rogers 1311-102 Zone-A-Flow valves. Could my circulator pump be bad although the other three zones are working? A thermostat wired to operate a normally-open zone valve (NO valve) will need to be re-wired if it supports operating a normally-closed (NC) valve. Is your boiler also making domestic hot water via tankless coil or an indirect water heater? The I have made the mistake of removing and tossing a part whose function I couldn't understand. Thank you for a helpful question on the reliability or quality of Taco vs Honeywell zone valves and actuators. (open-close) control of supply water for baseboard radiation, Other brands of zone valves such as those made by Flair (TM) (problem prone - shown below), and White Rodgers work similarly but their wiring may be slightly different. (open the boiler drain, using a hose to direct water to a safe drain location) should I consider replacing the valve or turning on the heat to clear the system and then turn it down? Here is another pic of the system, any insight someone could provide on changing my zone valves and the steps I need to do to pull it off would be so appreciated! We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. Take a look at the wiring guides at In an unfamiliar home I might try dropping the thermostat set temperature gradually in very cold weather, double-checking to see just how cold the room gets. Somewhere, logically, yes. There are also specific thermostats required for each type of valve. @Gene Lair, You can obtain the installation guide and ask questions of Honeywell at 1 (877) 663 0316 A clogged relief valve means that the heating equipment is unsafe to operate, risking a BLEVE. If the zones do NOT heat any rooms with plumbing you may be ok. (Fig. (Completing a circuit through contact 6 and the thermostat anticipator.) - Dennis. See CHECK VALVES, HEATING SYSTEM for details. I see the 5 zones going off the outbound pipe, but I only see 2 converging back to the intake. As the honeywell valve zone motorised 22mm port 1056 heating honeywell As I noted, unless the valve mechanism itself is damaged, you can just change the power head - leaving the actual valve assembly in place. Please find your question and my detailed reply now at the Reader Q&A section near the bottom of the article above on this page. to have automatic control of heat in the location that the zone-valve-fed radiator(s) or base boards enjoy. IF the motor is hot and nearby pipes are cool then the motor itself is seized and perhaps electrically unsafe. We discuss that in this article series. Will putting the lever in a closed position cause any issues? However if you are going to the trouble of rearranging or re-sweating zone valves at a hot water heating boiler, I'd see if it were possible to put the valves on the return side of the boiler - cooler water temperatures there may improve zone valve life. 5 loops of hot water heating piping leaving the boiler (one at each zone valve) Watch out: for boiler water chemical conditions that could contribute to zone valve failure. If the actual valve is a "paddle valve" type closure the valve may not open and close properly and may flutter, bang, or jam.
