Troubleshooting; Possible Cause(S); Corrective Action - Pentair Myers DE Serie Manuel D'installation Et D'utilisation

TROUBLESHOOTING

WARNING Read and understand safety and operating
instructions in this manual before doing any work on the pump!
WARNING Only qualified personnel should electrically test
the pump motor.
Risk of electrical shock. Disconnect power to
WARNING
outlet before handling pump or motor.
Symptom
Pump fails
to operate.
Pump fails to
empty sump.
Pump will not shut off.
8

Possible Cause(s)

Power to pump has been interrupted.
Liquid fluid level is not high enough to activate
switch or controller.
Plugged vent hole in discharge pipe.
Pump inlet, impeller, check valve or discharge pipe
are blocked.
Thermal overload may have tripped.
All valves in discharge pipe are not fully open.
Discharge pipe and check valve are clogged.
O-Ring
Lower bearing holder O-Ring.
Cord seal O-Ring.
SUDDEN STARTS
If the power to the pump is on when the thermal overload resets,
pump may start without warning. If you are working on the pump
when this occurs, you are at risk of electrical shock or impeller
may cause other personal injury or tool damage.

Corrective Action

Check to be sure you have power to your home. Check to be sure
that power cord is securely plugged into outlet or securely wired
into controller or switch box.
Check that fluid level is high enough to activate switch or
controller.
Check to be sure that the 3/16" vent hole in discharge pipe is not
plugged and unplug if needed.
Check for blockage in pump inlet, impeller, check valve or
discharge pipe and clean if needed.
Test start pump; if it starts and then stops immediately,
disconnect from power source for 30 minutes to allow motor
to cool, then reconnect to power source. Check for cause of
overheating.
Check to be sure all valves in discharge pipe are fully open.
Clean out discharge pipe and check valve.
Check for blockage in pump inlet or impeller and clean if needed.
A higher capacity pump may be needed.
inspect the float switch or control panel operation.
253P7090 (2-21-20)