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horstmann e7 quartz water heating control?

i recently got a new cylinder boiler and now my clock on the control doesnt move and when i put the boost on the boost dial doesnt move so instead of it turning itself off in an hour when im at work its on for 8 hours boost till i turn off £££££££££
BRIAN, January 2008
water dosent heat at night light comes on but no hot water works on booster

bridget mulcahy, December 2012
Hi.
I bought a property in june 2005 which is all electric. The E7 works for the storage heaters but 4 months ago the water no longer heated up overnight. I can still use the booster switch which gives me hot water. I had a new timeswitch fitted in december but this has failed to resolve the problem. The bolier make is Santon Plus model: PP170E. My friends say it may be a problem with the meter tails? Can anyone help

Ally, March 2009
Try

http://www.warmworld.co.uk/itemdetl.php/itemprcd/D3IHC_BL

Haven't tried this system - and still shopping around.. Will info you should I see something more cost effective...

Regards

Denis, April 2008
Economy 7 Quartz User Guide
http://www.horstmann.co.uk/downloads/ElectronicDocuments/Electric-Water-Heating/E7Q-UserGuide.PDF

Datasheet
http://www.horstmann.co.uk/downloads/ElectronicDocuments/Electric-Water-Heating/E7Q-Datasheet.pdf

Hope this helps as a starting point

U.O., April 2008
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