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  1. M

    2 port valve only works with cover off!

    Recently fitted a new actuator and head unit to a Honeywell 2 port valve on the hot water. When calling for hot water, the valve opens, the pump runs but no boiler. When I take the cover off the valve and call for hot water, it works normally. This was the case on the previous valve that was...
  2. P

    3 port valve

    Ive got a job on tomorrow to fix a 3 port, It's already had 2 new heads on the valve and needs a new one, Would you fit a new head or whole new valve? Just wondering what everyone else would do? Theres 3 gate valves and a pump valve that I can isolate the water by so no need to drain...
  3. R

    Preferred 2 port motorized valve

    Hi I am renovating a bungalow and redoing all the heating and plan to generate a number of zones for radiator heating. In the past I have mainly used Honeywell 4043H but having had a head fail after 2 years in a previous property I am not sure that they are any better than some other makes these...
  4. A

    Familiar with Barlo 2 port valves?

    Been to a job, someone had been before me and changed a pump but still no hw. Customer hadn't turned heating on yet this year. I pushed lever on 2 port and it all fired up. Switched heating on appears to work ok. Turned both off at programmer, everything still runs. Removed programmer...
  5. Inverness

    swaping a danfoss 2 port motorised valve to be replaced with a honey well

    Changing over a danfoss 2port motorised valve for a Honeywell 2 port valve. The problem is the Honeywell has 5 wires but the danfoss has only four wires. It is a danfoss control box. Can someone please give advice for correct position for wires. cheers
  6. jaydebruyne

    Honeywell 2 port

    Just curious, I need to change a 2 port valve, there is an iso just above it but not below, if it's a sealed system can I not just shut off the iso and replace without draining, and if a vented system bung the feed and vent and replace without draining? It's a 2 floor house and the valve is on...
  7. B

    Best 2 port 22mm zone valves normally closed

    So heres the story, my own boiler was replaced a year ago. All 4 zone valves were replaced at my suggestion..... for reliability reasons (they were 20 years old) - Now the motor has conked out on one of the new ones in 15 months. So before some random stuff gets put in - I want a 20 year life...
  8. A

    Price to change a Honeywell 2 port actuator

    Hi Had a request from a customer to change the actuator on their 2 port valve. Apparently already been diagnosed, they get HW if they keep it in the manual position, I said I prefer to change the whole thing but will obvioulsy take longer, they said just change the actuator. - Fine by me, i'm...
  9. Worcester

    Buffer Tanks - 2 or 4 port connections

    OK, A nice technical one for the Bank Holiday Weekend :) Buffer tanks - 2 port connection or 4 ? Which is best 2 or 4 port, in What situation and why? What factors e.g. does it depend upon the heating load types (e.g. underfloor / simple zone controlled rads) So under what circumstances...
  10. N

    Honeywell two port 2-port heating zone valve x3

    Selling x3 honeywell 2-port valves 5-wire £40 each cash on collection from north london add on guntree too Honeywell Two port 2-port zone heating valve | United Kingdom | Gumtree
  11. D

    2 port valves stuck open

    Hi, can anyone advice me what to do with 2 stuck open port valves. The handles/switches are really loose. Put WD40 on them, tapped them but can't get them to work. Is this the type that can be taken off and changed or is it a drain situation? Any help would great, thanks.
  12. R

    danfloss 3 port valve

    hi, had plumber to change 3 port valve, old one seized. now hot water and heating on together, valve doesn't turn from mid position. suspect wiring incorrect. Old danfloss actuator wiring yellow, blue, orange, white, green. new danfloss actuator wiring blue, brown/white, orange, grey. Does...
  13. S

    Two port zone valve on cylinder return

    Come across some of these recently, usually only ever see them on the flow to the cylinder, not on the return from it. Any reason for this? Does it make any difference as still won't be any flow unless there is a call from the cylinder stat?
  14. H

    Sunvic 3 port valve

    Hi ... I'm changing a 3 port Sunvic valve (MK1453). I've read that instead of replacing the body you can replace just the inners as this is held by 4 screws. If this is possible, will the system need to be drained first or is there a 'shortcut' ? Thanks in advance for any replies.
  15. K

    3 port valve - which way is flow?

    Is there any standard convention for which ports of a valve are open in relation to the flat on the valve spindle? I have a 3 port zone valve (unknown make/model), controlled by an actuator. The actuator linkage broke and, now that I am replacing it, I can't fathom out which position it should...
  16. S

    Loud groaning from two port motorised valve

    I have an issue with a Honeywell two port motorised valve attached to the side of my megaflow. It emits a very very loud groan which lasts anywhere between two and sixty seconds. As soon as you push the lever on the motorised valve it stops instantly. I have had had a new kitchen fitted...
  17. S

    Water hammer on 3 port mid pos

    Hi I have a customer who has water hammer as call for heating when hot water on. He informed me of this after i replaced his m/valve due to actuator failure and leaking valve but states his old valve used to do it too. Has anyone else experienced this, not sure what to do for him. Any help...
    • splinterdream
    • Thread
    • port water
    • Replies: 5
    • Forum: Bathroom Advice
  18. SimonG

    28mm 3 Port Valve, But Not Mid Position.

    Anybody know of one. One of the lads behind the counter at the local merchant was asking me. Somebody was trying to cobble some under floor heating :)
  19. J

    Heating zoned on a three port

    Hi. Went to a job where they wanted a new thermostat for the downstairs as it wasn't working properly. Having looked at the controls it was a 2 zone system where they'd used a 3 port to differentiate between them. Bizarre. Anyone seen this before?
  20. B

    Approx. replacement cost for fitting a 15/60 pump and 3 port actuator in a bungalow

    Title says all, I live in a bungalow in East Sussex, old 15/50 pump, and Danfoss actuator on 3 port valve all shot. Any approximate price for carrying out replacement of same. Boiler is new ( Worcester/Bosch 15 Ri ), Any help appreciated, Kind Regards, boaz
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