help me plz
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IRC 5800
Error :
The error code occurred because the process unit cooling fan (FM7) caused a rotational failure.
- E820-0002 can be displayed when there is an error in the process unit cooling fan.
The conceivable causes of the rotational failure are as follows:
- The cooling fan itself is faulty.
- The DC Controller PCB fails to output 24V because the fuse (FU2) on it has an open-circuit.
Workaround :
When the symptom occurs, follow the steps below.
1. Remove all the connectors of the DC Controller PCB and then check FU2 for electrical continuity.
2. If FU2 has electrical continuity, replace FM7 with a new one.
3. If FU2 has no electrical continuity, overcurrent might be fed continuously through the DC Controller PCB, consequently causing FU2 to have an open-circuit. Therefore, replace the PCB with a new one.
4. If the step 3 does not solve the error code, replace FM7 with a new one. In the field, there was one case where the error code was solved by replacing the DC Controller PCB and FM7 simultaneously.
FL2-1185 FAN
FM2-0857 DC Controller PCB Assembly (120V)
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