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Mend Honeywell ST7100 Central Heating Programmer

Honeywell ST7100 programmer goes blank when RUN selected?

10 minutes after I came home yesterday(28/12/2012) the power cut . Since then the central heating/hot water have not been working. I think the batteries are okay, because you can still get the display, However, as soon as you press RUN it doesn't click on and you lose the display. I have a Honeywell ST7100 programmer. Any help would be appreciated. PS, I changed the fuse at the switch but nothing. Help. Dannie

Dannie
December 2012
HoneywellHoneywell ST7100Heating, Home Heating SystemsCentral Heating Programmer Honeywell
try pressing the reset button

kash
December 2012

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Honeywell ST7100 Programmer Blank - Help!