Click up thermostat last evening -- took a while to come on so the temp dial back and forth and it finally clicked on -- then it apparently ran all night very hot heat even though thermostat set at 65 in that room - changed the batteries but could not get it to shut off -- it is five years or so old -- 8605 084615000020 SKU 526663 Thank you...may need new thermostat -- the little copper wire on the two yellow little towers is tad bent to the right...