Alarm Code #307
Model CPE52, 53, 14, 15, 15V, 16* ( *Only CPE16 units delivered before June ’99 )
Failure Trip start key switch failure
Countermeasure
<< Cause >>
(1) Short circuit of key switch
(2) Misoperation by turning ON the unit power supply switch
while the trip start key switch is turned ON.
(3) Defective PCB-D or PCB-C board
< Check >
Turn OFF and back ON again the unit power supply switch to see if the trouble persists.
(Note)
Do not operate panel keys when the unit power supply switch is turned ON.
< Action >
Replace PCB-D or PCB-S (PCB-C) board.
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