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Jan 22, 2018
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Chatteris
Member Type
DIY or Homeowner
Business Name
LANAJAAlma
Hi,

I have Honeywell Valencia VT117 TRV with Hive Heads fitted, the TRV insert pins on a number of rads are sticking and I've tried differing lubricants to try and resolve the problem, but to no avail.

Do you know of a replacement insert, Honeywell have confirmed they don't sell the part separately, and it seems such a waste to buy a complete TRV assembly and throw away the body and TRV head simply to replace the insert.

What to the pro's do?
 
the pins do not stick on the bit you can see they stick inside the valve you may have a dirty system causing the problem first port of call is add inhibitor see if that helps
Hi Gasmk 1,

Thanks for the swift response, the water is dosed and clear (deairator and Magnaclean installed), fair point about where the sticking occurs, lubrication wont do that much then!
 

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