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mid position

An open-mid vowel (also mid-open vowel, low-mid vowel, mid-low vowel or half-open vowel) is any in a class of vowel sound used in some spoken languages. The defining characteristic of an open-mid vowel is that the tongue is positioned one third of the way from an open vowel to a close vowel.

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  1. G

    Mid Position Valve has to be frequently replaced

    Hello Since moving into my property in 2016, I must have been through 5 or 6 mid position valves of various makes. I am just about to swap over the current Drayton MA1 which was installed 8 months ago because it now has the same fault as all the previous ones. The fault is that sometimes (not...
  2. J

    Mid Position Valve Programmer

    I've often seen this wiring diagram for Y plan but is the cylinder stat wired correctly?, should the cylinderstat terminal1 go to the boiler+circpump, terminal2 to the MPV grey wire and terminalC to (from) the programmer "HW OFF"?. The below wiring suggests to me that with "HW Off" and with the...
  3. T

    Drayton MA1 mid position actuator intermittent fault.

    Can anyone advise what could be the cause and how to overcome an actuator intermittently not responding when boiler is calling for heat. Possibly slightly loose fitting to valve, as actuator re-activates with hand pressure movement when boiler is calling for heat. This is an intermittent fault...
    • Tomcat
    • Thread
    • actuator america drayton fault intermittent ma1 mid position position usa
    • Replies: 3
    • Forum: USA
  4. M

    Getting hot water but no heat to radiators.

    Hi, I am abit stuck and cant really find a solution anywhere.. So, i have an F&E gravity system. The central heating pump needed replacing as the shaft had seized, changed it all well and good pump working lovely. I am getting only hot water The mid position valve is on the middle setting , if...
    • Mark1992
    • Thread
    • america central central heating system getting heat hot hot water mid position no heat radiators usa water
    • Replies: 12
    • Forum: USA
  5. H

    Mid position actuator newly installed issue

    Hi, I had a Drayton ma1 mid position actuator recently installed as central heating had stopped working. Now my heating and hot water will not come on at the same time (with timed settings) and I have been advised that my thermostat is not working which is causing the problem (from the emergency...
    • Hlruk1
    • Thread
    • actuator america drayton installed issue ma1 mid position newly position usa
    • Replies: 25
    • Forum: USA
  6. M

    Mid Position Actuator compatibility

    Hi everyone - my first time posting here, but I have used invaluable advice posted on the forums many times so thanks for that. We have a 3 port valve in our heating system where the motor has died so I was just going to swap in a new head The original one is a Travis Perkins ikon MA1 - it...
    • mbfacefirst
    • Thread
    • actuator america mid position position usa
    • Replies: 3
    • Forum: USA
  7. Spike47

    Siemens DVA3 3 Port Mid Position

    Hi I have a faulty Siemens DVA3 3 Port Mid Position Actuator that needs replacing, Can get a Drayton MA1 quite cheap, will this fit in place of the Siemens ! . Spike
    • Spike47
    • Thread
    • 3 port america mid position position siemens usa
    • Replies: 4
    • Forum: USA
  8. S

    Mid position valve as bypass

    Hi all Just seeing if this is a common method of providing a boiler bypass thesedays as there seems so many ideas out there, years ago if we needed a bypass a gate valve was the answer but no longer classed efficient and others not suitable due to the smart pump. The system is a sealed...
  9. L

    Help... intermittent hot water issue

    My heating has developed a new and unwelcome quirk just recently, which is that it's sporadically failing to provide hot water. This is something that happened a few weeks back, but it seemed to go back to normal, but in the past couple of days it has happened again each day. We have a...
    • Larches
    • Thread
    • 3 port valve actuator central heating diverter heating help hot hot water intermittent issue mid position water water issue
    • Replies: 22
    • Forum: Central Heating Forum
  10. Steve weightman

    Mid position valve operation

    On the mid position valve am I right in thinking when no demand from heating and hot water the valve returns to default hot water position as the new one I've fitted stays in central heating with no demands Thanks
    • Steve weightman
    • Thread
    • america mid position position usa valve
    • Replies: 6
    • Forum: USA
  11. G

    can i use a mid position actuator to replace a zone valve actuator

    can i use a mid position actuator to replace a zone valve actuator
    • garygvl
    • Thread
    • actuator forum mid position plumbing position replace urgent valve zone zone valve
    • Replies: 10
    • Forum: Plumbing Zone
  12. S

    Quick answer on mid position valve fault please

    Evening all, I’ve just left my last job of the day and I’m completely knackered. I’ve just been round to a job I did in January ( manual flush radiator on kicrobore) and whilst I was there the old tower mid position valve was making a racket, so the customer asked me to put a new one on(...
  13. J

    Mid position valve problem

    Im trying to diagnose a problem y plan system that won't go to mid position but will go onto heating or dhw only, would that indicate a faulty valve or programmer issue? It's a Drayton ma1 mid position valve
  14. T

    Drayton mid position replacement

    hi folks, do any of you know of a cheaper alternative head that fits the Drayton 3Port?
  15. J

    How to remove actuator from Drayton Mid Position Valve

    My Mid Position Valve has been playing up for years.. But a little tap, jet of air, or some lube seems to sort it. This year its failing more often than working, so its time to change it.. I have sourced a new value and was surprised to see that it had a black button on the side of the...
  16. J

    Central heating / hot water problem

    Hi all, been trying to solve a problem with my mum's CH/HW system and I could use a little advice. The problem is, the timer which is a seemingly very basic Wickes rwb7.cw only allows heating and water to be on together (the original programmer landis & gyr rwb200 had them seperate) - and they...
  17. Andy C

    Mid-position valve issues

    Hello, I'm having an odd issue with my mid-position valve. This is a bit lengthy as I want explain the steps I've taken... I have a y-plan heating system, with a 3-way mid-position valve next to my HW cylinder. My hot water is working fine, and when there is both water and heating demand, the...
  18. V

    Drayton Mid Position Valve

    Hello Everyone I've just joined the site and hope someone can help a plumber in need. Not been on forums before so this is all pretty new to me, if the thread is in the wrong place then apologise. I got called out to a customers house last week as the central heating wasn't working, on...
  19. C

    How to replace Mid position actuator of Drayton Mid-Postion Valve

    I think the actuator on our MA1/679 is faulty/sticking, but am not sure how to get it off to replace it. It was fitted so that it is touching one of the pressure vessels. The leaflet left by the plumber doesn't really help.( I tried to post a link to a pdf of it here, but the forum doesn't...
  20. L

    Mid Position Valve

    Hello, I have replaced the power head on a Honeywell 3 port mid position valve, the radiators were warming up when only DHW was being called for. The new valve is fitted and is wired in as per the old, wire for wire but its still behaving the same way. Is the problem likely to be the main body...
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