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49 DRIVER SHORTED
Condition for error detection
Alarm not used in pump configuration.
Verify:
• the presence of +Vb on pin 1 and 4 connector JP
• Short circuit between pins 16 and 17 connector JP (replace the logic unit)
• Resistive value between pin 16 connector JP and -BATT of the logic unit (standard open circuit)
50 CONTACTOR DRIVER
Condition for error detection
Alarm not used in pump configuration.
Verify:
• the presence of +Vb on pin 1 and 4 connector JP
• Short circuit between pins 16 and 17 connector JP (replace the logic unit)
• Resistive value between pin 16 connector JP and -BATT of the logic unit (standard open circuit)
51 AUX COIL SHORTED
Condition for error detection
Alarm not used in pump configuration.
Verify:
• the presence of +Vb on pin 1 and 4 connector JP
• Short circuit between pins 16 and 17 connector JP (replace the logic unit)
• Resistive value between pin 16 connector JP and -BATT of the logic unit (standard open circuit)
52 VACC NOT OK
Condition for error detection
Alarm not used in pump configuration.
Verify:
• the presence of +Vb on pin 1 and 4 connector JP
53 INCORRECT START
Condition for error detection
Seat microswitch opened during pump operation
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