Description: The BootROM on the main controller PCB and the system software are for different models or are of different types
Causes: The BootROM is not mounted correctly, or a fault occurred during downloading or when downloading the system software.
Remedy: Downloading (system software) Check the types of the BootROM and the system software, and download system software of the correct type.
Code: E803-0000
Description: The 24V output from the composite main power supply PCB is absent for 1 sec or more
Causes: The wiring is faulty (short circuit, open circuit). The composite power supply PCB is faulty. The DC controller PCB is faulty.
Remedy: 1. Connectors Are the connectors J204 on the main power supply PCB and the connector J300 on the DC controller PCB connected securely? NO: Connect the connectors securely. 2. Main power supply PCB Is 24 V supplied by the main power supply PCB (J204) to the DC controller PCB (J300)? (J204-5 <-> J300-5: OVU3, J204-6 <-> J300-6: OVU3, J204-7 <-> J300-7: 24VU3, J204-8 <-> J300-8: 24VU3) NO: Replace the main power supply PCB. YES: Replace the DC controller PCB.
Code: E805-0001
Description: The clock signal is absent for 5 sec or more after the fan drive signal has been generated. The detail codes of the fans in question are as follows:
developing fan (FM1)
Causes: The fan wiring is faulty (short circuit, open circuit). The fan is faulty. The DC controller PCB is faulty.
Remedy: 1. Foreign matter Is there foreign matter that prevents the rotation of the fan? YES: Remove the foreign matter. 2. Wiring, Connector Are the wiring and connector of the fan normal? Developing fan (FM1): DC controller PCB (J302B) Fixing fan (FM2): DC controller PCB (J308B) Curl reducing fan (FM4): DC controller PCB (J311B) Curl reducing fan (FM5): DC controller PCB (J311B) Electrical unit fan (FM3): main controller PCB (J1028) NO: Correct the wiring and the connection. 3. Fan, DC controller PCB Try replacing the fan. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
Code: E805-0002
Description: The clock signal is absent for 5 sec or more after the fan drive signal has been generated. The detail codes of the fans in question are as follows:
fixing fan (FM2)
Causes: The fan wiring is faulty (short circuit, open circuit). The fan is faulty. The DC controller PCB is faulty.
Remedy: 1. Foreign matter Is there foreign matter that prevents the rotation of the fan? YES: Remove the foreign matter. 2. Wiring, Connector Are the wiring and connector of the fan normal? Developing fan (FM1): DC controller PCB (J302B) Fixing fan (FM2): DC controller PCB (J308B) Curl reducing fan (FM4): DC controller PCB (J311B) Curl reducing fan (FM5): DC controller PCB (J311B) Electrical unit fan (FM3): main controller PCB (J1028) NO: Correct the wiring and the connection. 3. Fan, DC controller PCB Try replacing the fan. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
Code: E805-0003
Description: The clock signal is absent for 5 sec or more after the fan drive signal has been generated. The detail codes of the fans in question are as follows:
curl reducing fan (FM4)
Causes: The fan wiring is faulty (short circuit, open circuit). The fan is faulty. The DC controller PCB is faulty.
Remedy: 1. Foreign matter Is there foreign matter that prevents the rotation of the fan? YES: Remove the foreign matter. 2. Wiring, Connector Are the wiring and connector of the fan normal? Developing fan (FM1): DC controller PCB (J302B) Fixing fan (FM2): DC controller PCB (J308B) Curl reducing fan (FM4): DC controller PCB (J311B) Curl reducing fan (FM5): DC controller PCB (J311B) Electrical unit fan (FM3): main controller PCB (J1028) NO: Correct the wiring and the connection. 3. Fan, DC controller PCB Try replacing the fan. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
Code: E805-0004
Description: The clock signal is absent for 5 sec or more after the fan drive signal has been generated. The detail codes of the fans in question are as follows:
curl reducing fan (FM5)
Causes: The fan wiring is faulty (short circuit, open circuit). The fan is faulty. The DC controller PCB is faulty.
Remedy: 1. Foreign matter Is there foreign matter that prevents the rotation of the fan? YES: Remove the foreign matter. 2. Wiring, Connector Are the wiring and connector of the fan normal? Developing fan (FM1): DC controller PCB (J302B) Fixing fan (FM2): DC controller PCB (J308B) Curl reducing fan (FM4): DC controller PCB (J311B) Curl reducing fan (FM5): DC controller PCB (J311B) Electrical unit fan (FM3): main controller PCB (J1028) NO: Correct the wiring and the connection. 3. Fan, DC controller PCB Try replacing the fan. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.