Test the Water Pump Motor
Always secure and tag circuit breakers in the OFF position or disconnect equipment's
power cord from receptacle before attempting any electrical repairs, even minor repairs
such as replacing a light bulb. The latrine is a wet environment capable of posing an
electrical shock hazard when personnel have direct contact with energized wires or metal
parts. Failure to observe this safety warning may result in serious injury or death to
Failure to disconnect power from the water heater may result in a burnt out element.
1. Switch water heater circuit breaker #2B (1) and water pump circuit breaker #9/11 to the OFF position.
2. Unplug water pump power cord (2).
3. Remove the screws retaining the pump cover (3), and remove the pump cover.
4. Remove the screws retaining the motor junction box cover and remove the motor junction box cover
5. Tag and disconnect the wires (5) from the pressure switch conduit.
6. Use a multimeter set to read ohms (Ω), and test for continuity between the two motor terminals (6). If
the motor is open (Q ohms), notify Direct Support maintenance.
7. Use a multi-meter set to read ohms (Ω), and test for continuity between the each motor terminal (6)
and ground. If the motor is shorted, ground to the "hot" terminal (0 ohms), notify Direct Support
8. Connect the wiring (5) to the terminals (6) as tagged.
9. Install the junction box cover (4).
10. Install the pump cover (3), and retain with screws.
11. Connect the water pump power cord (2) to the receptacle.
12. Set the water heater circuit breaker (1) and the water pump circuit breaker to the ON position.
13. Operate the water pump IAW procedures given in WP 0009 00, and monitor for normal operation.