Ravenheat 820/20 microwsitch

Joined
12 Feb 2011
Messages
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Location
Hampshire
Country
United Kingdom
I had the 3 way valve replaced on my Ravenheat and in the plumbers wisdom he replaced the mircoswitch aswell but didnt get the cable code correct when he replaced it now i have heating but no hot water, but heating is only on when switched to hot water :? and when switched to both it blows a fuse :!: Can anyone help cos the missus is on my case :!:
 
normally a wiring diagram printed on the boiler or in the install instructions that your" PLUMBER "should use
 

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