Maintenance methods of common faults of Midea water dispenser
Explanation of maintenance method of Midea water dispenser
First, several situations in which the water dispenser cannot be heated.
(1) The water dispenser (the indicator light is off) does not generate heat.
Possible reasons: 1, the power supply is not connected; 2. The safety tube is burnt out; 3. The circuit board is broken.
Troubleshooting: 1. Check whether the heating switch is in the "ON" position. Whether the power socket has electricity; 2. Replace the safety tube; 3. Replace the circuit board.
(2) The water dispenser (indicator light is on) is not heated.
Possible reasons: 1, the heating pipe is burnt out; The thermostat is broken.
Solution: 1, replace the heating pipe; 2. Replace the thermostat.
(3) The water dispenser cannot heat the specific situation.
The first case: how to repair the drinking fountain without electricity, heating and air conditioning?
1. Check whether there is electricity in the power socket, and turn it on if there is no electricity.
2. Check whether the contact between the power plug and the socket is reliable, and plug it firmly if it is loose.
3. Check whether the internal and external power connections of the machine are disconnected and removed from the plug-in.
If there is, connect it. Second, the indicator light of the water dispenser is on, but it is not heated. How to maintain it?
1. First, check the fuse. (Actually, it should be a safety tube. The safety tube should be located behind the water dispenser. This is an insulating plastic head, which can screw the protruding part. (unscrew slightly counterclockwise. ) It shouldn't be hard to find. You can check it carefully. Some drinking fountains can only be found by opening the back cover. If there are two symmetrical ones, it is not a safety socket, but a drainage pipe when cleaning. The safety tube is single, and the color should be different. ) buy two or three according to this model, just in case.
2. Measure the resistance of the heating pipe with a multimeter. If it is very low or 0, the heating pipe should be broken.
3. Connect the plug well, that is, the plug has poor contact (or the zero line of this plug is broken, so that when you measure the socket, both wires should have electricity).
4. The power cord oil of drinking machine may be disconnected internally after long-term use.
As long as one line is broken, the water dispenser has no power input. 5. The internal power input part of the water dispenser is disconnected due to long-term wet corrosion and oxidation.
Third, the temperature control switch is tripped or the temperature controller is damaged.
Maintenance method: Open the cover at the back of the water dispenser, and you should see the water tank used by the water dispenser to heat water. There are usually two round things facing you, with two lines inserted respectively.
That's the temperature controller. Generally, the bottom one uses repairable temperature control, which is characterized by small buttons. Press the button with chopsticks to see if the water dispenser is good. If this is still the case, it must be that the temperature control is broken. It was just replaced. Two wires on the thermostat can be short-circuited to test whether it is good or bad. If it is a short circuit, it can further prove that the thermostat is damaged and can be replaced. Pay attention to check whether the fuse is damaged. It's in a black unscrewed thing. Fourth, the water dispenser is not heated, the power light is on, it can't be heated, it doesn't produce hot water, and the heating indicator light won't be on.
It turned out that the safety in the water dispenser jumped. Disassemble the back panel of the water dispenser and there is a black button. Just reset it The maintenance staff explained that there might be no water in the water dispenser, and then unscrewed the heating button, and there was no water in it.
The switch similar to the idling switch trips to protect the water machine. Five, common troubleshooting methods of drinking fountains
After the thermostat was removed, the baking test was done with a 50W electric soldering iron, and the on-off control of the thermostat was completely normal. At this time, it is suspected that the thermostat is not in close contact with the water tank shell after installation, which affects the heat transfer. Fill a layer of thermal conductive silicone grease between the temperature controller and the contact surface of the water tank shell, then tighten the screw of the temperature controller and fill the water dispenser with water for debugging and troubleshooting.
Experience: The reason why the yellow light and red light of the water dispenser don't go out is that the temperature control fails. The root cause of temperature control failure is that the thermostat is not close to the water tank shell, which affects the temperature transmission and its perception of temperature. I would like to remind colleagues that when replacing the thermostat of the water dispenser, a layer of heat-conducting silicone grease must be coated on the contact surface between the thermostat and the water bag shell to facilitate the temperature transfer.
Avoid similar failures. The above is the relevant explanation about the maintenance method of Midea water dispenser. Although Midea is a big brand, as an electrical appliance, there are some problems with drinking water. I hope this article will be helpful to your daily life.