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I've been given 3 old jemp vent openers that dont appear to work at present. One is closed up completely the other two appear to be stuck wide open as though its too warm...I've tried putting them in the freezer and this changed nothing. So they have all had a spray of WD40...is there anything else I could attempt to do to get them working again?

Many thanks

Steve...:)

Quote from: Steve. on September 02, 2011, 17:09:43
I've been given 3 old jemp vent openers that dont appear to work at present. One is closed up completely the other two appear to be stuck wide open as though its too warm...I've tried putting them in the freezer and this changed nothing. So they have all had a spray of WD40...is there anything else I could attempt to do to get them working again?

Many thanks

Steve...:)

Hi!

Best to just dump them!

Both of mine only lasted two summers, I took them down over winter, both leaked fluid at about the same time, I tried to get in touch with the makers in Dudley I think, they never even replied to my e-mail even after a prompting, so this summer I just manually opened the vents.

Had a very hot greenhouse a few times, but every thing grew as normal!

Cheers!