Wayne EFL33, 330102-001 Troubleshooting Chart, Pump may start unexpectedly. Disconnect

Operating Instructions and Parts Manual

Maintenance (Continued)

5.Submerge the complete pump in a disinfectant solu­tion­ (10% chlorine bleach solution) for at least one hour before handling the pump.

6.Clean all dirt and deposits from the pump float. Make sure float moves freely after cleaning.

7.Clean all dirt and deposits away from pump inlet and volute.

This pump contains dielectric motor

oil for lubrication and motor heat transfer. This oil can be harmful to the environment. Check state environmental laws before disposing of this oil. This oil can be harmful to aquatic life so consideration should be exercised in the application of this pump.

Troubleshooting Chart

Symptôm

Possible Cause(s)

Corrective Action

Pump will not start	1. Water level too low		1.	Pump switch will not turn on unless water covers top of pump
or run	2. Blown fuse or tripped circuit breaker		2.	If blown, replace with proper sized fuse or reset breaker
	3.	Low line voltage
			3.	If voltage is under recommended mini­mum,­ check wiring size from the
				main switch on property. If OK, contact power company.
	4.	Defective motor	4.	Return for service or replace motor
	5.	Defective float switch	5.	Replace float switch
	6.	Impeller (pump filled with debris)	6.	If impeller will not turn, remove housing and remove debris
	7.	Tangled switch	7.	Arrange switch so the switch moves freely­. Repo­si­tion­ pump if
				necessary
	8.	Insufficient liquid level	8.	Make sure liquid level is at least 13 inches from the basin floor
Pump starts and	1. Backflow of water from piping		1.	Install check valve
stops too often	2. Faulty float switch		2.	Replace float switch
	3.	Check valve not installed or leaking	3.	Remove and examine check valve for proper­ instal­la­tion­ and free
				operation
	4.	Discharge head is less than	4.	Recheck all sizing calculations to determine proper pump size
		manufacturer's minimum
Pump shuts off	1. Excessive water temperature		1.	Pump should not be used for water above 120º F
and turns on	2. Defective switch or entangled switch is		2.	Replace or reposition pump
independently		causing pump to run dry			Pump may start unexpectedly. Disconnect
of switch (trips
					power supply before servic­ing­.
thermal overload	3.	Low line voltage	3.	If voltage is under recommended mini­mum,­ check wiring size from the
protection)
				main switch on property. If OK, contact power company
Pump operates	1. Worn bearings		1.	Return for service or replace
noisily or vibrates	2. Debris in impeller cavity or broken		2.	Remove housing, clean impeller and/or replace broken impeller
excessively	3. Piping attachments to building		3.	Replace portion of discharge pipe with flexible connector
		structure too rigid or too loose
Pump will not shut	1. Defective float switch		1.	Replace float switch
off	2. Float switch movement restricted		2.	Reposition pump or clean basin as required to provide adequate
				clearance for float
	3.	Restricted discharge (obstruction in	3.	Remove pump and clean pump & piping
		piping)
	4.	Excessive inflow or pump not properly	4.	Recheck all sizing calculation to determine proper pump size
		sized for application
Pump operates but	1. Low line voltage		1.	If voltage is under recom­mend­ed­ minimum, check wiring size from the
delivers little or no				main switch on proper­ty­. If OK, contact power company
water	2. Debris caught in impeller or discharge		2.	Remove, clean and check for tightness­
	3.	Worn or defective pump parts or	3.	Replace worn parts or entire pump. Clean parts if required
		plugged impeller
	4.	Pump running backwards	4.	Check rotation. (CCW from bottom) Return if CW
	5.	Pump not properly sized for application	5.	Recheck all sizing calculations to determine proper pump size
	6.	Check valve stuck closed or installed	6.	Remove and examine check valve for proper installation and free
		backwards		operation
	7.	Shut off valve closed	7.	Open valve

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