Wayne T50S10-4, T75S10-2, T50S10-2 Symptoms Possible Causes Corrective Actions, Damage to pump

Operating Instructions and Parts Manual Deep Well Submersible ump

Troubleshooting Chart

Symptom(s)

Possible Cause(s)

Corrective Action(s)

Fuses blow or overload protector 1.	Low or high voltage	1.	If voltage variation is greater than 10% of nameplate rating,
trips while motor is running			call power company to adjust voltage.
2.	Ambient temperature too high	2.	Check temperature of control box. If necessary, move pump
			out of direct sunlight.

3.Control box uses wrong voltage or horsepower rating

3.Replace control box if voltage and horsepower ratings on control box nameplate do not match those shown inside box cover.

	4.	Wire size too small	4.	Install wire of correct size.
Pump starts too frequently	1.	Leaks in system	1.	Check tank connections with soapy water. Check plumbing for
				leaks. Ensure system is airtight and watertight.

2.Defective pressure switch or switch out of adjustment

2. Adjust or replace pressure switch.

3.	Leak in check valve(s)	3.	Replace if needed.
4.	Waterlogged tank	4.	Pre-charged tanks: Adjust air pressure to 2 psi (13.8 kPa) less
			than cut-in pressure. Replace bladder if needed.
			Air-over-water tanks: Repair or replace tanks. Replace air
			volume control (AVC) if needed.
5.	Leak in drop pipe	5.	Raise drop pipe by increments of one length until water stands
			in pipe. Replace pipe above that point.

6.Pressure switch is too far from tank

6. Position switch within 1 foot (0.3 m) of tank.

Little or no water pumped	1.	Check valve stuck or installed
		backwards (standard tank only)
	2.	Low water level (water source)

1.If stuck, free valve. If installed backwards, reverse valve position.

2.Determine lowest water level in well while pump is running. Compare to pump depth setting. Lower pump further into well, but at least 5 feet (1.5 m) from bottom of well. Throttle pump discharge until discharge equals recovery rate of well.

						Running pump while airlocked
						can cause loss of prime and serious
				damage to pump.
	3.	Low voltage	3.		Install larger wire from meter to control box. Install larger wire
					from control box to pump. Have power company raise supply
					voltage if needed.
	4.	Clogged intake screen	4.		Clean or replace if needed.
	5.	Check valve at pump discharge	5.		Free check valve.
		stuck
	6.	Worn impellers and diffusers	6.		Make sure that system is clear of debris and that pump is
					running normally in clear water. If there are no obstructions in
					system, replace pump.
	7.	Cracks or leaks in pipe	7.		Replace as necessary
Air, milky, or tea colored water	1.	Gas in well water	1.		Remove air release ports and plug tees. Make sure that
discharge from faucets					plugged tees do not leak. If necessary, separate gas from air
					before it enters pressure tank.

2.Air volume control (AVC) not working properly (standard tanks only)

3.Recent Shocking Well

2.Make sure ports and ball check valves are clear. Replace air volume control if needed.

3.Pump out well to remove chemicals. Test for chemicals in water, to determine when flushing is complete.

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