A tutorial on how to solve the problem of powder leakage in Delong coffee machine
A tutorial on how to solve the problem of powder leakage in Delong coffee machine
Delong 3000Gel 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.
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. 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.
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