TM 10-3510-226-23
0006 00
Table 1. PLC Troubleshooting Procedures for Containerized Batch Laundry - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
16. P4 Pump alarm at
Perform troubleshooting steps in TM
PLC (Figure 22, Item 1)
10-3510-226-10, WP 0023 00.
Replace overload relay or
Test overload relay (Figure 23, Item
contactor as necessary IAW WP
2) and contactor (Figure 23, Item 3)
IAW WP 0025 00.
Disassemble and clean
Inspect actuators (Figure 23, Item 4)
actuators as necessary. Test
for normal operation. Ensure the
the actuator IAW procedures
actuators are not locked in any one
given in WP 0029 00.
position.
Clean or replace flow sensors as
Check flow sensors (Figure 23, Item
necessary, IAW procedures
5) for obstructions or mechanical
given in WP 0027 00.
damage.
Replace open motor.
Check P-4 pump motor for continuity
IAW WP 0038 00.
If alarm persists, notify direct
support maintenance.
1
Figure 22. P4 Pump Alarm on PLC Display.
0006 00-24
