Question about Honeywell Programmable Thermostat Heater

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CM921 LCD figures breaking up

Despite new batteries, the LCD display of temp, date etc is broken up. Has anyone any suggestions? (Model CM921). Thanks.

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Hi There - I have a similar problem to the one described by yourself . Did anyone offer any help or assistance on this at all ?
Many thanks
M Hudson

Posted on Aug 04, 2013

Testimonial: "Sadly, no-one has come up with a solution. However, on a few days when the temperature has been a bit lower, it displays correctly - maybe it just can't cope with warm temperatures! Thanks, Bob."

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A) Move the slide in to the off position
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1 Answer

Changed batteries


Please check the following website for all the info and faq.

http://skyscan.info/content/index.php?option=com_content&task=view&id=35&Itemid=40

Also,

If you have lost the outside temperature on the clock display after replacing the transmitter battery then do the following:

1. Make sure you have good batteries installed in the remote transmitter
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6. Bingo. You are in business.

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