Delong semi-automatic coffee machine can not tell what is wrong with the coffee.
Delong semi-automatic coffee machine can not tell what is wrong with the coffee.
Delong EAM3000,4000 series coffee machine, press the key, sometimes can not turn on, sometimes can not turn off, coffee powder lamp (the light in the lower right corner) will light up for no reason, sometimes the hand touches the coffee powder key, without pressing the button, the light will come on.
Replace the panel circuit board and troubleshoot.
The extractor of the automatic coffee machine is stuck on the water plate, which makes it impossible to start up and down, and neither the water plate nor the extractor can be taken out.
It is estimated that this fault is caused by the customer incorrectly cutting off the power plug, open the back cover of the machine, receive the rotating pulley, make the extractor rise to a slightly higher position, then check the power supply, turn on, and troubleshoot.
Delon EAM3000,4000 series coffee machine, just started to make coffee, the knobs and buttons on the panel function normally, but after making 2-3 cups, the knobs and buttons are confused, such as rotating the coffee powder knob, the water shortage light will always be on.
Replace the panel circuit board, troubleshooting, but carefully observe the working process of the coffee machine, found that the boiler interface steam leakage, estimated steam into the panel circuit board, resulting in panel function failure. Replace the boiler sealing gasket and troubleshoot.
The extractor can not be taken out, so observe that the extractor is at the top. One, two, the alarm light is always on.
After entering the functional test mode, the extractor can move up, but not down. after inspection, the extractor motor is broken, replace the motor and troubleshoot.
The voltage at both ends of the motor is normal. When moving up, F8 is positive, F7 is negative, and the voltage value is 200V. After reaching the top, the voltage disappears and 1 cup light is on. When the 2-cup key is pressed, the extraction part walks downwards, F8 is negative voltage, F7 is positive voltage, and the voltage value is 200V. After reaching the bottom, the voltage disappears and the 2-cup lamp is on.
One drink, two drinks, warning light on.
It may be that the extractor motor is broken, the general motor resistance value is about 200 ohms, if it is too small or open, it should be judged as motor damage. Since this motor is a DC motor, the measuring motor needs to be turned to the motor by hand, and the resistance value is measured in each gear.
If the resistance value is too small, the circuit board may also be damaged, so the circuit board cannot be replaced first, lest the motor burn the circuit board again. If the power is plugged in and the relay sound on the circuit board cannot be heard, it is estimated that the circuit board needs to be replaced.
Coffee comes out of the water in the form of a drop, not a stream.
After the purchase of the automatic coffee machine, the first few times of use are normal, but after several times of use, the above problems will occur, and check the thickness of the coffee powder is also normal. At this time, it is necessary to check whether there are two pieces of metal filter on the extractor. If there are two pieces, remove one piece, and the fault will disappear.
The heater of Delong coffee machine leaks.
The sealing ring of the tip of the pen is damaged, resulting in leakage, please order accessories.
Low pressure intake and return pipes of all Delong automatic coffee machines
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