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Honeywell CM67 Wireless Thermostat behaving odd


 
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ssjjsd

from United Kingdom

Joined: 01 Nov 2009
Posts: 2
Location: Bristol,
United Kingdom

PostPosted: Sun Nov 01, 2009 10:56 am Reply with quote

Please help, my Honeywell CM67 Wireless Thermostat which has worked for about 5 years without any problems has recently started to turn the boiler on outside of the programmed on/off times, if I switch to AUTO, the boiler fires up even though the off time is 9:30 am and the next on time is 6:00pm??? icon_rolleyes.gif
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Tris123

from United Kingdom

Joined: 01 Nov 2009
Posts: 2
Location: Hull,
United Kingdom
Thanked: 1 time

PostPosted: Sun Nov 01, 2009 12:32 pm Reply with quote

May sound stupid but have the batteries been changed recently? if they have check the receiver box on a combi should be near the boiler if a heat only probably in the airing cupboard a red light usually indicates a problem with signal and will probably need a rebind.

Also, check when you put it on auto if the green light comes on on the receiver if so check your off temps on your thermostat.
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ssjjsd (2 Nov 2009)
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bengasman

from United Kingdom

Joined: 28 Jan 2005
Posts: 30954
Location: London,
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PostPosted: Sun Nov 01, 2009 1:23 pm Reply with quote

Override by any chance?
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dreadnoughtheating

from United Kingdom

Joined: 31 May 2009
Posts: 1973
Location: Norfolk,
United Kingdom
Thanked: 293 times

PostPosted: Sun Nov 01, 2009 7:42 pm Reply with quote

Has the optimisation option be reactivated? I can supply instructions on how to 'de-activate' if needed.

DH
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ssjjsd

from United Kingdom

Joined: 01 Nov 2009
Posts: 2
Location: Bristol,
United Kingdom

PostPosted: Mon Nov 02, 2009 12:21 am Reply with quote

Cheers but a re-bind seems to have solved the problem
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