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

[AlanVW]

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

 

[ShaunCorbs]

New one common issue

 

[Chuck]

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

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.

 

[AABBCC]

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

Have you checked the fuse in the supply? Are you getting 240v to the unit?