This is mostly due to there was something wrong with automatic temperature controller, lead to compress the pilot time to work. Put heat pipe of the thermostat at 0 ℃ ice water in 10 minutes or so, check the thermostat contacts, and found that the contact is still no disconnect or continuous phenomenon, may be the thermostat switch contacts are fused together. At this point, the thermostat can be frozen in the refrigerator freezer, such as disconnection, changed is the thermostat temperature control point, the thermostat will be removed in a normal in the refrigerator freezer freezes the 20 minutes, measure the thermostat switch and disconnect, temperature control point that it has changed, adjust lever screw counterclockwise 0. 25 laps, open stop. Usually adjust temperature controller is very difficult to achieve the original temperature control performance, it may increase a user's electricity or short of the original machine refrigeration performance index, so the adjustment range as small as possible, if still cannot be disconnected after freezing, suggesting that the thermostat switch are welding together, need to change.qDSservice manual download site