Try searching for CL6P0120 which is a Potterton thermostat, several sites list it as suitable for Thorn M boilers. It also seems to go by the number "231844".
Mike Palmer, November 2009
Hi there,
We just moved into a new house and have the same problem with the boiler thermostat - did you ever find one?? If so, was it easy to fix?
Thanks!
Julie Wilson
Julie, February 2009
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I can answer this question...
supplier for Thorn/EMI gas boiler thermostat model M44/54B?
