What this code means

The pump motor output is lower than expected, considering the pwm applied.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

A) If the problem occurs at start up (the LC does not close at all), check: - Motor internal connections (ohmic continuity) - Motor power cables connections - If the motor connection are OK, the problem is inside the controller B) If the problem occurs after closing the LC (the LC closed and then opens back again), check: - Motor connections - If motor windings/cables have leakages towards truck frame - If no problem are found on the motors, the problem is inside the controller C) If the alarm occurs during motor running, check: - Motor connections - If motor windings/cables have leakages towards truck frame - That the LC power contact closer properly, with a good contact - If no problem are

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