Discuss No LED display on honeywell cm921 batteries all replaced & Checked. Ant thoughts pls in the Central Heating Forum area at PlumbersForums.net
Probably best to replace. A T4R is the recommended Honeywell replacement.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?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
Reply to No LED display on honeywell cm921 batteries all replaced & Checked. Ant thoughts pls in the Central Heating Forum area at PlumbersForums.net
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