Hi Please can anyone send me instructions to reset my honeywell heating programmer?
email: adelles at live.co.uk
email: adelles at live.co.uk
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Honeywell ST6400s SERVICE DUE problem
- Thread starter adelles
- Start date
I think only Honeywell will give the codes to reset these tiresome programmers and you have to convince them that you are a registered gas heating engineer.
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