Electrical Parts Working & Testing Principle - Midea G01 Service Manual

6.TROUBLESHOOTING
6.4 Electrical parts working & testing principle
1. Inlet valve
Working principles:
A piece of iron core blocks in the inlet valve, and
one side of the iron core is the push exerted by
spring. When the power is turned on, the winding
in the valve will generate a force to pull the iron
core up, and then the inlet passage is smooth and
the water flow in the drum under the household
water pressure .
Technique datas:
Maximum input voltage:
Frequency:
Resistance:
Flux:
Water pressure:
Temperature of hot water:
The testing methods of inlet valve is as follows:
1) Use the multimeter to test the electromagnetism
valve resistance, which should be 4.13k
If the value is infinite or approaching to zero,
the valve is invalid and can't let water enter.
2) Connect the inlet valve and tap, if water flows
out of the outlet without power being off, the
iron core is invalid and should be replaced.
220-240V
50/60Hz
Ω
4.13K ±10%
8L/min ±15%
0.2-10bar
Maximum 25℃
Ω
±10%.
P.48