_O & M MANUAL - WEST LANE MOBILE HOME PARK

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I TROUBLE SHOOTING j CAUTION I Always disconnect the pump from the electrical power source before handling. If the system faits to operate property, carefully read instructions and perform maintenance recommendations. If operating problems persist, the following chart may be of assistance in identifying and correcting them: MATCH "CAUSE" NUMBER WITH CORRELATING "CORRECTION" NUMBER. NOTE: Not all problems and corrections will apply to each pump model. PROBLEM I CAUSE [ CORRECTION Pump will not run Pump will not tum off Pump hums but does not run Pump delivers insufficient capacity 1. Poor electrical connection, blown fuse, tripped breaker or other interruption of power, improper power supply. 2. Motor or switch inoperative (to isolate cause, go to manual operation of pump): 2a. Flaot movement restricted. 2b. Switch will not activate pump or is defec- tive. 3. Insufficient liquid level. 2a. Float movement restricted. 2b. Switch will not activate pump or is defec- tive. 4. Excessive inflow or pump not properly sized for application. 9. Pump may be aidocked. 14. H -O -A switch on panel is in "HAND' posi- tion 1. Incorrect voltage 8. Cutter jammed or loose on shaft, worn or damaged, inlet plugged. 1. Incorrect voltage. 4. Excessive inflow or pump not properly sized for application. 5. Discharge restricted. 6. Check valve stuck closed or installed backwards. 7. Shut-off valve closed. 8. Cutter jammed or loose on shaft, worn or damaged. inlet plugged. 9. Pump may be airiocked. 10. Pump stator damagedttorn. Pump cycles too frequently or runs 6. Check valve stuck closed or installed periodically when fixtures are not in use backwards. 11. Fixtures are leaking. 15. Ground water entering basin. Pump shuts off and turns on indepen- dent of switch, (trips thermal overload protector). CAUTION! Pump may start unexpectedly. Disconnect power supply. Pump operates noisily or vibrates excessively I. Incorrect voltage. 4. Excessive inflow or pump not properly sized for application. 8. Cutter jammed, loose on shaft, worn or damaged, inlet plugged. 12. Excessive water temperature. 4. Operating at too high a pressure. 5. Discharge restricted. 8. Cutter broken. 13. Piping attachments to buiding structure too rigid or too loose. 19 1. Check all electrical connections for security. Have electrician measure current in motor leads. if current is within ±20% of locked rotor Amps, impeller is probably locked. If current is 0, overload may be tripped. Remove power, allow pump to cool, then recheck current. 2a. Reposition pump or clean basin as required to provide adequate clearance for float. 2b. Disconnect level control. Set ohmmeter for a low range, such as 100 ohms full scale and connect to level control leads. Actuate level control manually and check to see that ohmmeter shows zero ohms for closed switch and full scale for open switch. (Float Switch). 3. Make sure liquid level is at least equal to suggested tum -on point. 4. Recheck all sizing calculations to determine proper pump size. 5. Check discharge line for restrictions, including ice if line passes through or into cold areas. 6. Remove and examine check valve for proper installation and freedom of operation. 7. Open valve. 8. Check cutter for freedom of operation, security and condition. Clean cutter and inlet of any obstruction. 9. Loosen union slightly to allow trapped air to escape.Verify that turn-off level of switch is set so that the suction is always flooded. Clean vent hole. 10. Remove & examine for damage. Replace pump stator if required. 11. Repair fixtures as required to eliminate leakage. -12. Check pump temperature limits & fluid temperature. 13. Replace portion of discharge pipe with flexible connector. 14. Turn to automatic position. 15. Check for leaks around basin inlet and outlets.