Replacment Digiital Stat/Control for Existing Honeywell CM921


Postby MickySparker » Wed Jun 13, 2018 4:46 pm

Hi all,
Our Worcester Greenstar combi gas boiler has a wireless Honeywell CM921 'stat/controller which works well - apart from the display now being barely legible (a common issue with them I believe). This started losing segments after less than 3 years and it's now been in for about 8 years.
Looking to replace it with a similar BUT NOT Honeywell device.
Worcester versions seem to be extremely expensive, can anyone recommend a sensibly priced reliable unit please?
Mick
MickySparker
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