Edwards EXS Series Instruction Manual page 62

Cause Clearance between housing and rotors are too small due to contamination.
Remedy Clean pumping chamber.
Cause Clearance between housing and rotors are too small due to distortion of the
pump.
Remedy Affix and connect the pump free of tension.
Cause Friction resistance is too high due to contaminated bearings and/or contaminated
lubricant.
Remedy Clean pump, respectively do the maintenance.
Cause Lubricant level is too high.
Remedy Drain lubricant down to the correct level.
Cause Lubricant level is too low.
Remedy Top up lubricant to the correct level.
Cause Wrong lubricant filled in.
Remedy Contact us.
Cause Bearing is defective.
Remedy Contact us.
Cause Bearing damage.
Remedy Repair pump.
Cause Thick particle deposits.
Remedy Clean pump, respectively do the maintenance.
Fault Motor power consumption is too high
Cause Cause Like "Pump gets too hot".
Remedy See
Cause Incorrect mains voltage for the motor.
Remedy Connect the motor to the correct mains voltage.
Cause Exhaust is blocked or restricted.
Remedy Clean the exhaust pipe.
Fault Pump is too loud
Cause Motor stator defective.
Remedy Contact us.
Cause Motor rotor defective.
Remedy Contact us.
Cause Distances between housing and rotors is too small due to contamination.
Remedy Clean pumping chamber.
A41870880_A
A41870880_A - Fault finding
Pump gets too hot on page 61.
Page 62 07/2021 - ©Edwards Limited