Test Power Cord
High voltage is present on this equipment. Do not perform maintenance function with
power on. Disconnect power input to the latrine and place the power cable end where it
can be directly observed while performing this task. Serious injury or death to personnel
may result if safety precautions are not observed.
Failure to disconnect power from the water heater may result in a burnt out element.
1. Ensure the water heater circuit breaker #2B (1) and the water pump circuit breaker #9/11 are set to
2. Disconnect the water pump power cord (2) from the water pump outlet (3).
3. Remove the screws retaining the pump cover (4), and remove the cover.
4. Remove the pressure switch cover (5).
5. Tag and disconnect the power cord wires (6) in the pressure switch (7).
6. Using an ohmmeter or multi-meter set to read ohms, connect one lead from the multimeter to one of
two large power prongs (8) on the male plug (9).
7. Connect the other lead first to one wire (6) on the pressure switch end of the cord, then the other.
One side should have continuity, one side should not.
8. Connect the lead to the other large power prong (8) on the male plug (9), and repeat step 2.
9. Connect one lead of the multimeter to the smaller ground prong (10), and the other lead to the green
ground wire (11). There should be continuity.
10. Connect one lead to the male ground prong (10), and then check first one, then the other large male
prong (8). There should be no continuity between the ground and the other prongs.
11. Replace a power cord (2) that does not pass these tests.
12. Install pressure switch cover (5), and retain with cap nut.
13. Install the pump cover (4), and retain with screws.
14. Reconnect power cord (2) to outlet (3).
15. Prime water pump, and operate in accordance with procedures outlined in WP 0009 00.
16. Set water heater circuit breaker (1) and water pump circuit breaker to the ON position, and monitor for