It often becomes stiff to turn at first and the valve may give intermittent problems. If you want a clear explanation of the internal electrical working, see John Ward’s YouTube video. If you need a tool to turn the spindle because it is very stiff, the valve may be failing. If we come across a very old valve without the pip (and these are usually 20 or more years old) we never remove the powerhead! In small properties there may be no other motorised valves.In medium sized or larger properties, using a combi boiler, there may be an additional zone valve external to the boiler which allows the heating to be split into two zones.System boilers may also have a diverter valve or zone valve built into them and might not have any external zone valves. As soon as Hot Water is also called, you will hear the valve start to unwind under the force of the spring, then you will feel the lever “bump” your finger. After years of use, the O rings sealing the valve spindle (or actuator shaft) can fail. There is always an open pathway from port AB to port A or from port AB to port B or from port AB to both ports A and B at the same time. If there are then ‘street' elbows or closely fitted elbows used on either the A or B port then ‘turbulence' is likely around the area of the valve. As far as we know, the genuine SYNCHRON motors made for Honeywell have two blue wires whereas most genuine SYNCHRON motors have orange wires. They tell us that the valve has moved into the mid-position where both Heating and Hot Water ports are open. Product code: 53143 Honeywell Home 3 Port Mid Position Valve 28mm £142.90. The small metal gear wheel on the bottom of the motor goes through a hole in the powerhead base plate. Here is a picture gallery about honeywell 3 port valve wiring diagram complete with the description of the image, please find the image you need. When a V4073A mid-position valve is set up in a Y-Plan configuration and Hot Water is called for, power to the boiler is provided directly from the cylinder thermostat. If central heating was selected too, and the room thermostat turned up so that the radiators came on, the hot water would heat up. Even if the valve is not stuck open the switch contacts can occasionally be found to have welded together (caused by the spark arcing across the switch contacts). As far a we know, Honeywell motorised valves which were made from 1985, and which carry the raised pip (small bump) on the top of the metal cover, allow the powerhead to be removed without draining down (see above). We’re told that the ball touches one edge of the circular port first, causing the ball to rotate slightly on its spindle. This fault is most commonly caused by a motorised valve. V4044C1288 is a 22mm compression, diverter valve feeding one port at a time onlyV4044C1569 is a 28mm compression diverter valve feeding one port at a time onlyV4044C1098 is a 3/4″ BSP Female diverter valve feeding one port at a time onlyV4044C1494 is a 1″ BSP Female diverter valve feeding one port at a time only. Testing a Synchron valve motor, Honeywell motorised valves electrical operation, Honeywell 22mm zone valve operation (V4043H1056), Honeywell 28mm zone valve operation (V4043H1106), Honeywell 3-port mid-position valve operation (V4073A1039 and V4073A1088), Honeywell 3-port mid-position valve operation (V4073A1039 and V4073A1088). Ive got a Y-plan fully-pumped central heating system, but when the controller calls for CH, the synchron motor (in the Honeywell V4073A mid position valve) is not moving the valve round (and hence the boiler is not firing). Hi all I have a Honeywell 3 port valve and had the heating engineers out as the heating was not working, but the hot water was fine. When we buy new Honeywell valves to put on stock we check that they are in the locked open "manual" position for storage. As there is still a demand for Heating, the valve will motor to the Heating Only position (port A open; port B closed) and switch a 230V supply onto the orange wire, to power the boiler. Honeywell replacement motor for the V4043 series 3-port motorised valve. Y plan central heating system wiring diagram plumbersforums net hive and honeywell 3 port mid position valve how a works v4043 motorised 2 for full hd faults free installation instructions motorized zone does an s work 6 data taco controller manuals user manual manualzz boiler 4 wire 1985 sundial pack 7 day valves problems v8043e1012 1990 chevy blazer … Now get someone to select Hot Water too, so you get Heating and Hot Water together. Where additional zone valves are used there will usually be another programmer or timer. The powerhead drives a spindle (or actuator shaft) which is part of the valve body. Honeywell and Drayton motorised valve bodies only turn through a limited arc and you must “feel” for the points at which the movement stops. The Honeywell V4043H1106 28mm 2-port zone valve has 6 wires. Cut it closer to the failed motor, leaving a longer piece of wire connected to the powerhead. There’s usually a clue in the price. If the actuator cover does not have a raised pip on the top (a reversed dimple), do not remove the actuator or you'll get a flood. The valve typically has 5 wires: green/yellow = Earth; blue = Neutral; brown = Switched Live from room stat or from cylinder stat; grey = Permanent Live; orange = Switched Live feed to boiler (and pump). Remember, it only ever moves through about 70� for 2 port Honeywell valves and only about 45� for 3 port Honeywell valves so don't force it! All the zone valves would open and close together, defeating the purpose of separate zones. Tonight, I think I have narrowed it down to the Honeywell V4043H motorised valve. You set the valve into the manually open position by turning the power off, then pushing the lever towards the Man Open end of the slot. First, isolate all electrical power from the central heating system controls. Environment Describes the situation the problem occurs or the environment that the question applies to, including products affected UserManuals.tech offer 178 Honeywell manuals and user’s guides for free. In the UK most domestic Honeywell zone valves are either 22mm compression (V4043H1056) or 28mm compression (V4043H1106) though they are also available as �" BSP Female (V4043H1007) and 1" BSP Female (V4043H1080). 22mm Honeywell V4043H1056 zone valve showing the "pip" on the top of the silver metal case and the manual lever at the bottom of the valve. FREE next day delivery available, free collection in 5 minutes. The hot water and heating are 2 separate systems, each with their own motorised valves, located under the boiler in a cramped cupboard under the stairs, with the valves about 200mm off the floor. When the programmer and stat send a Live feed to the 2-port motorised brown wire, the motor drives the valve open to allow water to pass. This can be a bit of a fiddle. £90.83 each. These are blue, green/yellow, white, grey and orange. Please read our Legal Disclaimer. These are all small angles! It is now relatively unusual for the white wire (6th wire) of a Honeywell 2-port zone valve to be used. We use a non-contact volt stick to confirm that it is safe. qty. The valve won’t be driven open and the end switch will not be made (connected) so power will not be sent on to the boiler or pump. Remove the motor securing screw which is located at the side of the Synchron motor. The valve body is the brass casting which is bolted into the pipework. Please let us know if you like our Plumbing Basics and Tricks of the Trade videos. Hi all, I have a problem with my system, the HW and CH seem to be on together, when the CH is on it also heats the HW. The Honeywell 28mm motorised 3 port mid-position diverter valve has been designed to control the flow of water in conventional central heating systems, where both radiator and … This is the relaxed state or de-energised state of the valve. Unwanted hot radiators can be caused by bad pipework design but this system had had no pipework changes and had worked normally before. That noise and that bump are diagnostic. You must also isolate the electrical supply before removing a Honeywell motorised valve powerhead. 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