| Symptom |
Cause |
Corrections |
|
No Power
(No Display)
(LED Off)
|
① Power Outage.
② Loose power cord.
③ Bad plug connection.
④ Unit turned OFF.
⑤ No power output (AC 220V) is measured between the 5th and 7th pin of the
Trans connector when the unit is connected to the power supply.
⑥ No voltage (AC 12V) is measured from the 1st and 3rd pin of the Trans
connector when the unit is connected to the power supply.
⑦ No power output (DC 4.5V~ 5.5V) is measured between the 1st and 11th pin
of the 26th pin connector of the POWER PCB.
⑧ Power output (DC 4.5V~5.5V)is measured from ⑦. |
① Explain to the customer.
② Plug in tightly.
③ Replace plug socket.
④ Turn ON the ON/OFF switch.
⑤ Replace POWER PCB.
⑥ Replace TRANS.
⑦ Replace POWER PCB.
⑧ Replace CONTROL PCB.
|
|
No Operation
(LED On) |
① Corroded
CONTROL PCB. |
① Replace
CONTROL PCB. |
|
No Operation
(3rd LED flickers, Self-Diagnosis) |
① Nozzle motor disconnected.
② Faulty nozzle unit |
① Replace nozzle unit.
② Replace nozzle unit. |
|
No Operation
(1st LED flickers, Self-Diagnosis) |
① Water thermostat short-
circuited or disconnected. |
① Replace
thermostat. |
|
No Operation (2nd LED
flickers, Self-Diagnosis) |
Faulty Seat Mechanism
(Faulty slow down function) |
① Replace
thermostat. |
|
No Operation
(1st & 2nd LED flickers, Self-Diagnosis) |
① Seat thermostat
disconnected or short-circuited.
|
① Replace seat. |
|
No Operation
(1st & 3rd LED flickers, Self-Diagnosis) |
① Suspension of water
supplies.
② Level sensor disconnected. |
① Explain to customer.
② Replace level sensor. |
| No Water Spray |
① Suspension of water
supplies.
② Filter is clogged.
③ Level sensor
short-circuited.
④ Solenoid short-circuited
or
disconnected.
⑤ Internal hose twisted.
⑥ Low water pump capacity.
⑦ Water pump short-circuited
or disconnected.
⑧ No power output from the
POWER PCB’s pump connector. |
① Explain to customer.
② Clean the filter.
③ Replace level sensor.
④ Replace solenoid.
⑤ Rearrange hose position.
⑥ Replace pump motor.
⑦ Replace pump motor.
⑧ Replace POWER PCB. |
| No Water Spray |
① Leakage from the
connection pipes.
② Burst or disconnection of
internal hoses.
③ Overflow occurs even when
the unit is turned OFF.
④ Level sensor disconnected.
(No water leakage if unit is turned OFF) |
① Tighten the pipes
properly.
② Replace hose.
③ Clean solenoid of
extraneous
substances.
④ Replace level sensor. |
| Water is Not
Warm |
① Temperature is set at low.
② Water heater disconnected. |
① Reset temperature setting.
② Replace water heater. |
| Water is Not
Warm |
① Temperature is set at low.
② Seat heater disconnected. |
① Reset temperature setting.
② Replace dryer unit. |
| Warm Air is Not
Warm |
① Temperature is set at low.
② Dryer heater disconnected. |
① Reset temperature setting.
② Replace seat. |
|
Faulty Seat Mechanism
(Faulty slow down function) |
① Seat pin broken.
② Damper gears broken.
③ Insufficient damper
grease. |
① Replace seat.
② Replace damper.
③ Replace damper. |
The
