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Looking for a smarter way to manage your heating this winter? We’ve been testing the new Aqara Radiator Thermostat W600 to see how quiet, accurate and easy it is to use around the home. Click here read our review.
Fuse F1 on PCB 40 keeps blowing as soon as you turn on the Boiler (turning on hot water tap). Originally tried a new PCB 40 - no change so re-fitted the old on. Changing the fan spead control board has helped. now the fuse only blows when the fan should start working. Tried a new Fan - no effect...