Service manual

Defect in

Water

Supply

Water supply not

carried out (IE)

Continuous water

supply (IE)

Immediate water

supply when power

is turned on

Water supply

continued when

power is turned off

• Defect in water supply valve

• Defect in PCB • Water supply relay short

• Suspension of water supply

• Tap frozen

• Tap closed

• Hot & cold water hose switched for connection

• Low water pressure (0.2kgf/cm or less)

• Blocking of water supply valve filter by foreign substances

• Defect in cold & hot water valve

• Defect in connection of water supply terminal (not connected)

• Defect in pressure switch

• Defect in PCB

• Defect in water supply valve

• Leakage in air hose (air leakage from pressure switch hose)

• Air trip blocked, damaged

• Defect in pressure switch

• Defect in drainage valve: Continuous water supply

• Blocking by foreign substances in drainage bellows

• Defect in PCB

• Defect in water supply relay drive circuit

• Water supply relay open

• Water supply relay short