• Code: 1620
• Description: Pressurizing initialization error
  The initialization process did not complete within a predetermined time period.
• Remedy: 1. Replace the Pressure Unit (IC Holder). 2. Replace the Main Board.

• Code: 1621
• Description: Pressurizing/Suction switching error
  The pressurizing and suction processes did not complete within a predetermined time period.
• Remedy: 1. Replace the Pressure Unit (IC Holder). 2. Replace the Main Board.

• Code: 1622
• Description: Operating time-out error
  The switching operation did not complete within a predetermined time period.
• Remedy: 1. Replace the Pressure Unit (IC Holder). 2. Replace the Main Board.

• Code: 1623
• Description: Continuous revolution error
  The control terminal (Vre terminal) of the Pressure Motor driver has shorted out.
• Remedy: 1. Remove the foreign material. 2. If the error still occurs, replace the Main Board.

• Code: 1930
• Description: Pre Heater AD abnormal error
  A thermistor temperature out of a predetermined range was detected the predetermined number of times in a row.
• Remedy: 1. Replace the thermistor . 2. Replace the Main Board.

• Code: 1931
• Description: HTC common elements communication error
  • Connection failure between the Main Board and Sub-E Board such as cable disconnection • There is something wrong with the elements on the Sub-E Board. • There is something wrong with the communication elements on the Main Board.
• Remedy: 1. Reconnect the cable. 2. Replace the cable. 3. Replace the Sub-E Board. 4. Replace the Main Board.

• Code: 1932
• Description: Pre Heater overheat error
  A heater temperature out of a predetermined range was detected the predetermined number of times in a row.
• Remedy: 1. Replace the thermistor . 2. Replace the Main Board.

• Code: 1933
• Description: Pre Heater heat deviation error
  The difference between the current temperature and target temperature exceeded a predetermined limit.
• Remedy: 1. Replace the thermistor . 2. Replace the Main Board.