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apcdave

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Hi chaps,

15 year old Danfoss HSA3 - valve body was jammed so replaced with Tower 3 port - swapped orange with orange/ brown and white with white / grey with grey

now boiler on all the time - incorrect wiring or could programmer also be at fault?

thanks guys -

dave :banghead::banghead:
 
Check programmer for back feed from DHW off connection.
 
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