Edwards nES Series User Manual

Remedy Contact service department.
Cause Motor coupling damaged (if applicable)
Remedy Contact service department.
Cause Vanes worn out
Remedy Contact service department.
Cause Solid parcles in the oil
Remedy Change oil.
Fault
Pump runs hot
Cause Wrong oil type
Remedy Replace oil.
Cause Poor room venlaon
Remedy Install an auxiliary fan.
Cause Fan defect
Remedy Contact service department.
Cause Wrong power supply to motor
Remedy Check.
Cause Discharge clogged
Remedy Check couplings at outlet.
Fault High oil consumpon
Cause High working pressure (close to atmospheric pressure)
Remedy Check oil level frequently.
Cause Pump runs hot
Remedy Refer to Pump runs hot on page 44.
Cause Exhaust lter element clogged
Remedy Replace.
Fault
Pump does not maintain vacuum aer power-o and pump leaks oil
Cause Check valve damage
Remedy Contact service department.
Cause Tank screws or plugs loose
Remedy Tighten.
Cause Tank gaskets damaged
Remedy Contact service department.
Page 44 - 07/2020
A35104880_B - Fault nding

Edwards nES Series Specifications

General

Brand	Edwards
Model	nES Series
Category	Water Pump
Language	English