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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Hello all... My Honeywell ST799 Programmer is problematic! I can no longer use HOT WATER alone, but only the CENTRAL HEATING programme switches on the boiler. Also, when I attempt to programme in the time for either the HOT WATER OR CENTRAL HEATING the times change for both simultaneously! Has anyone else come across this 'delinquent' behaviour? Or can anyone suggest a fix? Any advice will be much appreciated... Richard.
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