Table 2-2. Unit Troubleshooting-continued
TEST OR INSPECTION
R.O. PUMP ASSEMBLY-continued
PUMP ASSEMBLY IS NOISY.
Check that pump motor is securely mounted, to motor mounting plate.
If motor is not secured properly, tighten mounting hardware.
Check that motor mounting plate is securely attached to pump stand assembly.
If mounting plate is not securely fastened to pump stand assembly tighten mounting hardware.
On models WPES-10, WPES-20 and WPES-30, check that R-O. pump is securely mounted to pump mounting
plates and that pump mounting plates are securely fastened to pump stand assembly.
If pump or pump mounting plates are not securely fastened, tighten mounting hardware.
On models H-9518-1, H-9518-2, and H-9518-3, check that R.O. pump and motor are securely mounted to
If pump or motor are not securely fastened, tighten mounting hardware.
Step 4. On models WPES-10, WPES-20 and WPES-30, check that pump stand assembly is securely mounted to
If stand assembly is not secure, secure stand assembly by tightening mounting hardware.
Isolate noise to pump or motor.
If pump is noisy, notify Direct Support Maintenance.
If pump motor is noisy, notify Direct Support Maintenance.
PUMP ASSEMBLY SHUTS DOWN AND/OR FAILS TO START.
Check if high pressure or low pressure light on control panel is on.
If high pressure light is on, go to Malfunction 5, Piping Installation.
If low pressure light is on, go to Malfunction 6, Piping Installation.
Check if circuit breaker CB1 and/or heater assembly of motor starter, K1, are OFF. TRIPPED window on
heater assembly of motor starter will indicate white, if heater assembly is tripped.
If circuit breaker CB1 and/or heater assembly are OFF, go to step 6.
If neither circuit breaker CB1 nor heater assemblv are OFF. continue with step 3.
2-32 Change 1