• Code: E804-0000
• Description: Power Supply Cooling Fan (FM4) error
  When detecting a failure of the Power Supply Cooling Fan (FM4).
• Remedy: 1. Check the connector connection between the Power Supply Cooling Fan (FM4) and the AC Driver PCB (PCB4).
  2. Replace the Power Supply Cooling Fan (FM4).

• Code: E805-0000
• Description: Heat Exhaust Fan (Rear) (FM6) error
  The lock signal was detected for 5.0 seconds while the Heat Exhaust Fan (Rear) (FM6) was being stopped. *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Heat Exhaust Fan (Rear) (FM6) and the DC Controller PCB (PCB1).
  2. Replace the Heat Exhaust Fan (Rear) (FM6).
  3. Replace the DC Controller PCB (PCB1).

• Code: E805-0001
• Description: Heat Exhaust Fan (Rear) (FM6) rotation error
  The lock signal was not detected for 5.0 seconds while the Heat Exhaust Fan (Rear) (FM6) was being driven.
  *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Heat Exhaust Fan (Rear) (FM6) and the DC Controller PCB (PCB1).
  2. Replace the Heat Exhaust Fan (Rear) (FM6).
  3. Replace the DC Controller PCB (PCB1).

• Code: E805-0002
• Description: Heat Exhaust Fan (Front) (FM5) error
  The lock signal was detected for 5.0 seconds while the Heat Exhaust Fan (Front) (FM5) was being stopped. *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Heat Exhaust Fan (Front) (FM5) and the DC Controller PCB (PCB1).
  2. Replace the Heat Exhaust Fan (Front) (FM5).
  3. Replace the DC Controller PCB (PCB1).

• Code: E805-0003
• Description: Heat Exhaust Fan (Front) (FM5) rotation error
  The lock signal was not detected for 5.0 seconds while the Heat Exhaust Fan (Front) (FM5) was being driven. *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Heat Exhaust Fan (Front) (FM5) and the DC Controller PCB (PCB1).
  2. Replace the Heat Exhaust Fan (Front) (FM5).
  3. Replace the DC Controller PCB (PCB1).

• Code: E820-0000
• Description: Developing Cooling Fan (Front) (FM7) error
  The lock signal was detected for 5.0 seconds while the Developing Cooling Fan (Front) (FM7) was being stopped. *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Developing Cooling Fan (Front) (FM7) and the DC Controller PCB (PCB1).
  2. Replace the Developing Cooling Fan (Front) (FM7).
  3. Replace the DC Controller PCB (PCB1).

• Code: E820-0001
• Description: Developing Cooling Fan (Front) (FM7) rotation error
  The lock signal was not detected for 5.0 seconds while the Developing Cooling Fan (Front) (FM7) was being driven. *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Developing Cooling Fan (Front) (FM7) and the DC Controller PCB (PCB1).
  2. Replace the Developing Cooling Fan (Front) (FM7).
  3. Replace the DC Controller PCB (PCB1).

• Code: E820-0002
• Description: Developing Cooling Fan (Rear) (FM8) error
  The lock signal was detected for 5.0 seconds while the Developing Cooling Fan (Rear) (FM8) was being stopped. *The same status was detected again after executing an error retry.
• Remedy: 1. Check the connector connection between the Developing Cooling Fan (Rear) (FM8) and the DC Controller PCB (PCB1).
  2. Replace the Developing Cooling Fan (Rear) (FM8).
  3. Replace the DC Controller PCB (PCB1).