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URGENT No LED display on honeywell cm921 batteries all replaced & Checked. Ant thoughts pls

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AlanVW

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No LED information on a Honeywell cm921. Batteries all changed & checked, any ideas pls. Can they be repaired or is it a new one required
 
AlanVW said:
No LED information on a Honeywell cm921. Batteries all changed & checked, any ideas pls. Can they be repaired or is it a new one required
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Probably best to replace. A T4R is the recommended Honeywell replacement.

If you're feeling lucky, people have claimed success at restoring CM921 displays by putting them in a sealed bag of rice and leaving in a warm airing cupboard for a few days. The rationale is that the CM921 display is hydroscopic and not properly sealed so humidity does the damage but it's reversible.
 

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