danfoss fp715si problems

Joined
21 Sep 2013
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Location
West Midlands
Country
United Kingdom
hi all
my old wall progrmmer was a danfoss fp975 that sadly came to an end
so now I have purchased the danfoss 715si after being told that it was the new version and would clip straight to the existing bracket and be exactly the same so having fitted it and set the small levers to match my old programmer it now switches on the water heater but after about 70 to 80 seconds it just turns it off
can anyone help at all
many thanx[
 
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Does the (LED) light stay on on the programmer signifying the channel is active?

Did the earlier programmer also show the light or did it go out after 80-90 seconds
 
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So, what makes you think it is the programmer?
Have you checled to see if voltage is present at the wiring center??

At present looks like you have splashed money on a programmer that miught not be faulty

You post is simplified if I started replacing the wall switch plate if the light fails to come on in a room. Could esily be a duff bulb :idea:
 

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