HAKO 7580.02, Service Booklet

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Foil 74
9.2.3 ZAPI Controller
13) TEMPERATURE
This message indicates that temperatures has exceeded 76°C.
Maximum current is reduced by steps down to zero with a temperature of 86°C. Possible causes:
a) If the alarm is output directly after switching the system ON with a cold controller,
temperature monitoring is not working correctly (replace controller!)
b) If the alarm is output shortly after start of operation, heat is insufficiently
dissipated (check installation and fastening screws)
14) NO FULL COND.
Test at full speed;
If, at full speed, voltage at the VMN terminal is > 1/3 VBatt, this is an indication for a faulty diagnostic
circuit and the system switches off.
If the error persists, replace controller (logic unit).