How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Plumberpro Your Own Question

Plumberpro
Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience:  Heating and plumbing answers. 20 years experience
77408428
Type Your Plumbing Question Here...
Plumberpro is online now

My radiators are fitted with Temtrol TRVs dating from 1988.

Resolved Question:

My radiators are fitted with Temtrol TRVs dating from 1988. The control heads no longer function correctly. I understand these TRVs were originally manufactured by Honeywell, but are no longer available. The TRV control head fits onto the valve body via a 28mm thread. Can a current Honeywell replacement TRV head be used in place of the original Temtrol? If so which one?
Regards,
***** *****
Submitted: 1 year ago.
Category: Plumbing
Expert:  Plumberpro replied 1 year ago.
Hi, yes they can but it is usually the valve body sticking that causes the fault and not the head. I recommend replacing the whole valveTo test take off the head and see if the pin moves up and down.
Customer: replied 1 year ago.
I appreciate that it is better to replace the entire valve unit, but in this case the valve body is working well. The pin moves smoothly and cuts off the water supply when fully depressed. The control head appears to be leaking wax and no longer engages with the pin. All I need is a replacement control head which will fit the 28 mm thread on the body and provide the correct movement of the actuating pin. You confirm that a Honeywell control head will do the job, but I need to know which one will meet the above requirements. Please advise.
Expert:  Plumberpro replied 1 year ago.
Hi if your valve body is 28mm you will need an adapter to use current 30mm try heads. You can get these online herehttp://www.heatingcontrolsonline.co.uk/radiator-valves-c-28.html/replacement-trv-heads-c-28_51.html/28mm-trv-adaptors-p-386.htmlwould you mind rating your answer please, thanks
Customer: replied 1 year ago.
Thank you for your reply, but on the page you suggest, there are many adaptors available. I just need to know what head and what adaptor will be suitable for replacing the head of a Temtrol TRV. Can you advise me on this? Make and part number would be useful.
Expert:  Plumberpro replied 1 year ago.
Hi .as informed by heating controls you need the 15A5 as found here http://www.heatingcontrolsonline.co.uk/orkli-trv-adaptor.html?search=15A5
Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience: Heating and plumbing answers. 20 years experience
Plumberpro and other Plumbing Specialists are ready to help you

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
< Previous | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • theplumber717

    theplumber717

    Plumber

    Satisfied Customers:

    516
    Lic plumbing and heating contractor, 28 years exp
< Previous | Next >
  • http://ww2.justanswer.co.uk/uploads/TH/theplumber717/2011-11-24_34039_DSCF7012.64x64.JPG theplumber717's Avatar

    theplumber717

    Plumber

    Satisfied Customers:

    516
    Lic plumbing and heating contractor, 28 years exp
  • http://ww2.justanswer.co.uk/uploads/PL/Plumberpro/2014-6-23_6520_image.64x64.jpg Plumberpro's Avatar

    Plumberpro

    Plumber

    Satisfied Customers:

    202
    Heating and plumbing answers. 20 years experience
  • http://ww2.justanswer.co.uk/uploads/BI/billyjr1961/2013-9-27_11122_ATT1351123267229photo.64x64.JPG Billy's Avatar

    Billy

    Technician

    Satisfied Customers:

    206
    Mechanical Contractor
  • /img/opt/shirt.png Brian's Avatar

    Brian

    Plumber

    Satisfied Customers:

    47
    16 yrs. experience as plumber, including full bathroom and kitchen installations.
  • http://ww2.justanswer.co.uk/uploads/MA/MarkAYng/2011-1-15_16358_Markcameo2008b.64x64.jpg MarkAYng's Avatar

    MarkAYng

    Handyman

    Satisfied Customers:

    0
    Knowledgeable in home, electrical and small appliance repair.
  • http://ww2.justanswer.co.uk/uploads/AS/AssuredElectrical/2011-9-13_221243_me.64x64.gif AssuredElectrical's Avatar

    AssuredElectrical

    Home Improvement Enthusiast

    Satisfied Customers:

    332
    Electrical contractor's license