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05101@aspen-apumedium

Ac Cb1

electrical

Description

AC voltage is present at TB1 but not at CB1 in Diesel or shore power; the unit gives an alarm only and CB1 outputs will not be powered.

Activation Conditions

The unit is operating in Diesel or shore power and AC voltage is present at TB1 but no voltage is present at CB1.

Unit Behavior

Alarm Only. CB1 outputs will not be powered when active

Reset Conditions

· Auto Reset when AC power is restored at CB1 · Manual reset from alarm menu in Aspen Interface or System Status in Cabin Tech, or by turning the unit off, then back on.

Corrective Actions

1. Check for excess load/short on Heater 1/Engine Block Heater circuit. 2. Check continuity on ground to white neutral circuit at CCM TB1-2. 3. Replace CCM.