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12-7. Deformation of Water Supply/Drain Tanks
12-8. Display Turns on, but the Course Button Is Faulty.
Does the power turn on when you press the power button after
detaching the display PCB from the door?
Is the water supply/drain tanks crushed or deformed?
Does the power turn on when you press the power button after you remove
moisture/water from the door glass and assemble the display PCB?
Check the seal condition and remove moisture/water.
Is the steam outlet hose properly connected without
bending/twisting/folding?
Replace the display PCB.
Replace the door ASM.
Check the hose condition and replace the hose if necessary.
※
If the hose is clogged, steam flows backward and water
supply/drain tanks are deformed due to the heat.
- Disassembled Machine Room -
Disassembled
1. Check if the hose connecting AG and
nozzle is bent, twisted, or folded.
1. Check the direction of the check
valve and see if foreign substances are
deposited on it.
Water ow direc-
tion
NO
NO
NO
YES
YES
YES
Check Valve
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