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Inlet Valve
Theory of parts
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Access inlet valve
1. Disconnect power.
2. Remove the water inlet hose. (Note : Be careful of remain water drop.)
3. Remove the cover of the bottom board.
4. Disconnect the 2 terminal lugs from the inlet valve.
5. Pull out the valve a little then contrarotate it to take it
off.
6. Remove the clamp and disconnect the inlet hose (to air
breaker) from the water valve.
7. Reverse above procedures to install.
1.Open the protecting box and take out the PCB;
2.With the door closed, unplug the CON3 and ACN wires ,
then use the multi-meter
shelf to measure resistance
between the blue wire (EV1) and the blue wire(ACN), the
normal resistance is about 3.4K
to 4.4K .
3. I f the measured resistance is not correct, it means the
valve coil is broken or the connector is loose. In this
case, we should check the connection first. If the
problem hasn’t been solved by re-connection, we should
replace the valve..
4.If the resistance is OK, we need to inspect the valve
body.
Ω
Ω
Ω
Inspect inlet valve
Check electric part
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10 -
ACN
EV1
Check machine part
1. If the electric part is OK, we need to check the machine part.
2. Check the valve filter. if the valve filter is blocked, we need clear the residues.
3. If the valve filter is clear and the valve can’t inlet water, check whether valve can act or
not. If it isn’t , we need replace the valve.
4. If the water is continue entering, we need replace the valve.
Summary of Contents for WQP12-7311D
Page 33: ...Troubleshooting 33 ...
Page 34: ...Troubleshooting 34 ...
Page 35: ...Troubleshooting 35 ...
Page 36: ...Troubleshooting 36 ...
Page 37: ...Troubleshooting 37 ...