Table 2-2. Unit Troubleshooting
TEST OR INSPECTION
1. ALL PUMPS INOPERABLE.
High voltages in this equipment can cause serious injury or death. When applying power
during a test, take proper measures to ensure personal safety. Never work on electrical
equipment unless there is another person nearby who is familiar with the operation and
hazards of the equipment and who is competent in administering first aid.
Step 1. Check for 208 VAC, three phase power at P1 (power input plug) of power cable Check between
pins A-B, B-C and C-A.
If 208 VAC is measured in all three tests, notify Direct Support Maintenance.
Step 2 Check for 208 VAC, three phase power at power source output lugs.
a. If 208 VAC, three phase power is measured, replace power cable assembly. Refer to
b. If 208 VAC, three phase power is not measured, refer to power source manual