Cooling water circulation machine troubleshooting
Cooling circulating water machine is based on the coolant (commonly used coolant for the water, low temperature common synthetic coolant, such as ethylene glycol aqueous solution, hereinafter referred to as the coolant or "water" for short) as the heat transfer medium, the other need to cool the instrument Or the heat generated by the device is passed out, the heat is dissipated to the outside of the device through the refrigeration system to ensure that the device operates within the normal temperature range. Equipment and equipment rely on the pump pressure within the device to form a closed medium cycle, the temperature sensor detects the medium temperature, the implementation of the control of the refrigerator. When the cooling water cycle machine has some faults, we often can solve the problem according to some specific phenomena. Phenomenon 1: When the power is turned on for the first time, the power switch indicator is not on and the pump does not turn. - Possible causes and solutions: The air switch above the power inlet (the main circuit breaker) is in "OFF" state. Set the air switch to "ON" to solve the problem. Phenomenon 2: The first boot or a long time does not boot, the pump does not turn or stall, "pump normal" indicator light, buzzer alarm. - Possible causes and solutions: There is a lot of air inside the pump or fouling, or the pump does not cause long-term decline in rotor lubrication, resulting in difficult to start the pump. Need to unplug the power, open the device cover, plectrum motor rotor just behind the rubber disc, with a screwdriver to withstand the motor rotor about activity, the motor can be restarted. . Note: Different types of pumps are used for different devices. The above disassembly and adjustment methods may not be applicable. Phenomenon: water level alarm indicator flashing, buzzer alarm. - Possible causes and solutions: a) water tank water, water level is too low. Fill the water level switch can be; b) level switch short circuit or damage. Change the level switch. Phenomenon 3: Water flow alarm indicator flashes, buzzer alarm. - Possible causes and solutions: a) The pump is not turned on. Press the button to open the pump; b) the water circuit is open. Check the circuit; c) The pump is damaged. Change the pump. (Cooling water machine troubleshooting methods)
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