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WCP85
Troubleshooting Chart
Pump may start unexpectedly. Disconnect power supply before ser vic ing.
Symptom Possible Cause(s) Corrective Action
Pump fails to run
Pump emits loud noises
when operating
Pump operates but
there is no flow of
liquid
Liquid drains back into
pump from discharge
line
Liquid leaks from
around check valve
1.Pump not plugged in
2.Low voltage, blown fuse, open
circuit
3.Reservoir is absent of
condensate
4.Drain/discharge lines blocked
Foreign material in reservoir
1.Float is sticking
2.Discharge height greater than
15 feet
3.Obstruction in discharge tube
4.Blockage in check valve
5.Damaged check valve
1.Damaged check valve
2.Blockage in check valve
3.Discharge line is 5’ or less
1.Check valve fastened too tight
or too loose
2.Damage to O-ring
1.Plug in.
2.Have a certified electrician check fuse circuit.
3.Make sure that there is adequate condensate level in
reservoir. Check drain lines and/or discharge line for
obstructions.
4.Check drain lines and/or discharge line for obstructions.
Refer to Maintenance section for cleaning instructions.
1.Refer to Maintenance section for cleaning instructions.
2.Measure from bottom of pump to highest point. Rework
discharge if height is greater than 15’. Refer to Installation
Step 4 for instructions.
3.Check discharge line for blockage. Remove debris.
4.Refer to Maintenance section for cleaning instructions.
5.Contact Wayne.
1.Contact Wayne.
2.Refer to Maintenance section for cleaning instructions.
3.Condensate liquid may drain out of line into reservoir due
to discharge height. This is normal. No action is necessary.
1.Check valve should be hand-tightened, then tightened an
additional 1/2 turn with a 9/16” wrench.
2.Replace with a 1/2” ID x 11/16” OD x 3/32” thick O-ring or
contact Wayne Technical Service at 1-800-237-0987.
Before servicing a pump, always shut off the main power breaker and then unplug the pump.
Make sure you are not standing in water. Make sure you are wearing insulated, protective-
soled shoes. Under flooded conditions, check your local electric company or a qualified licensed electrician for
disconnecting electrical service prior to pump removal. If the above checklist does not solve the problem, contact
Wayne Technical Service at 1-800-237-0987.