Table 4-2. Unit Troubleshooting Guide
TEST OR INSPECTION
SEPARATOR. (MODEL ROWPU-1 ONLY)
Separator leaks at piping joints.
Repair leaks (para. 4-20.1).
Water leaks through separator waste hoses when ROWPU is shut down.
Replace separator outlet check valve (para. 4-20.1).
No wastewater flow from separator hose.
Check raw water pump rotation. It should be clockwise from fan end.
If rotation is wrong, rewire motor by interchanging the T1 and T2 leads in the motor junction box
Test raw water pump. Start the pump and let it run until water is flowing out of the ROWPU waste
Close the cartridge filter block valve and read the pressure on the media filter pressure gage.
If the pressure is less than 10 psig (79 kPa), replace the raw water pump and motor assembly (para
If the pump is working properly, remove the waste hose from the bottom of the separator (para. 4-
20.1) and clean out any sand or debris that may be clogging the separator.
No raw water discharge flow from separator.
If operating in freezing conditions, be sure separator is not filled with frozen water. Warm up the separator
before assuming they are plugged.
Remove the separator raw water outlet hose from the separator and start the raw water pump (para 2-17).
If there is no flow from separator outlet, replace the separator (para. 4-20.1).
Booster pump leaks.
If the pump piping connections or drain valve leaks, repair the leak (para. 4-43).
If the pump leaks at the shaft or at case flanges, replace the pump and motor assembly (para. 4-43).
Change 7 4-16.1/ (416.2 Blank)