Error Code: E7 - Malfunction Of Outdoor Unit Fan Motor - Daikin MicroTech III DPS Installation And Maintenance Manual

ERROR CODE: E7 – Malfunction of Outdoor Unit Fan Motor
E7
Remote
Controller
Display
Detect a malfunction based on the current value in the INVERTER PC board (as for motor
2 current value in the fan PC board) .
Method of
Malfunction
Detect a malfunction for the fan motor circuit based on the number of rotation detected by
Detection
hole IC during the fan motor operation .
● Overcurrent is detected for INVERTER PC board (A2P) or fan INVERTER PC board
(A5P) (System down is caused by 4 times of detection . )
Malfunction
Decision
● In the condition of fan motor rotation, the number of rotation is below the fixed number
Condition
for more than 6 seconds . (System down is caused by 4 times of detection . )
● Failure of fan motor
● Defect or connection error of the connectors/ harness between the fan motor and PC
Supposed
board
Causes
● The fan can not rotate due to any foreign substances entangled .
● Clear condition: Continue normal operation for 5 minutes
OM 1263 • MICROTECH UNIT CONTROLLER 78
Troubleshooting
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