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26 Paul W. Doli R.E.H.S. #6227 (530) 701-9972 AdvanTexO MANUAL• COMMERCIAL Maintenance • - s Corrective Maintenance e.Faufty floats—If,after checking the circuit breakers,fuses,and An alarm is triggered when the Aquid in the tank reaches a level that switches,the pump still does not operate,toggle the"AUTO- is either higher or tower than it should be,under normal operating OFF-MAN"switch to"MAN."If the pump engages,the problem Conditions. is likely to be in the float system.If the motor contactor engages but the pump doesn't run,go to step g,"Wafer in splice box or When responding to an alarm,first discern the type of alarm being loose wires.")Pump the tank down to a level below the"Override activated.If it is due to pump faifure,test each pump manually and locate Timer OrVOT float.Cycle the pump to simulate the timer on the tailed pump.To replace the pump,see the"Removing&Replacing and off periods so the effluent is dosed to different zones of Inoperative Pumps"section of this document.Remove the access riser lid the AdvanTex®system.Toggle the"AlfrO-OFF-MAN"switch to and visually inspect the liquid level.If a high liquid level or low liquid level "AUTO."Do not leave a pump in the"MAN"position unattended.If has caused the alarm,follow the appropriate procedures below you do,the pump can continue to operate without liquid,possibly drawing solids into the fifter and causing potential failures.Isolate High Liquid Leel Alarm the float switches and check to ensure all floats are operating 1.Determine if the high water alarm is from higher than expected properly.ff a float is found to be faulty,refer to the"Removing& usage(i.e.,special event,etc.).If there is a long-term increase in Replacing Inoperative Floats"section in this document. flows,then timer settings need to be adjusted accordingly. IMPORTANT!Before doling any work on either the wiring to 2.When a high liquid level condition exists,the source of the problem is the level control floats and pump or inside the pump control likely to be one of the following: panel,switch off the power to the system at the service entrance panel and set the circuit breakers in the panel to a.Poor valve seal—Consult the design plans for proper operating their'OFF"positions. level and visually inspectthe recirculating valve to verify the liquid d.Pump dooaed or not clean—Check the pump for discharge level in the tank is wfthin the normal range.If the liquid fevel is flow.Close the ball valve,disconnect the union in the discharge high,the valve may require cleaning because it is not making a fight seal when seated.Remove,disassemble,and inspect. plumbing assembly and tum the union so it is facing down. Engage the pump and visually inspect the approximate flow b.Control UgUel breakers tripped—Check the circuit breakers, rate being discharged.If you are unsure of the discharge rate, switches,and fuses in the system control panel.If separate measure the time it takes to fill a five-gallon bucket with the breakers in the main panel were used for the pumps and controls, discharge.Check this value against the appropriate pump curve. also check these breakers.If a breaker Is found to be tripped, If the flow rate is insufficient,the pump may need to be cleaned. reset the breaker.If the breaker trips immediately,check the Refer to the Pump Repair Manual provided In Appendix D. wiring for a short or bad breaker.If the breaker or breakers don't um e.Valves closed—If the trip again,then the problem has probably been found or has pump operas in the proper flow range, corrected itself.Test the automatic function of the system as check all downstream valves to ensure that they are in the open shown in the"Start-up&Operation"section of this manual to Position.If the valves are all open,test the discharge pressure of the pump.For proper pump testing methods,refer to the Pump verify proper operation. Repair provided in pa p Appendix D. AIM-DM-AM-3,Rr.e2.1,05/15 . ••copyright Orenco soterne,Inc.Property of 0renco systems®,rc.Do not repmducr;or tllstriwm wamt written autnurization from Drenco:800-348-8843,