E0 radiator thermostat error message although radiator valve is free
Radiator valve has been proven be to be free by using an alternative Tado Smart Rad. Thermostat which works perfectly well. The seeming faulty Thermostat ( 6 months old) when in situ, usually reads around 27° on the app whatever the ambient temperature. I've experimentally put it in the fridge where the app reading fell to 5°, upon removal it gradually climbs to its favourite 27° again. Any ideas on how to get this thermostat to function correctly ?
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