Grundfos CME Series Service Instructions

Cause Remedy
Motor winding is defective. • Repair or replace the motor.
The pump is mechanically blocked. • Switch off the electricity supply, and clean or repair the pump.
The setting of the motor-protective circuit breaker is too low. • Set the motor-protective circuit breaker according to the rated
current of the motor (I
1/1
). See nameplate.
6.3 The motor-protective circuit breaker trips out occasionally.
Cause Remedy
The setting of the motor-protective circuit breaker is too low. • Set the motor-protective circuit breaker according to the rated
current of the motor (I
1/1
). See nameplate.
Periodic supply failure. • Check cables and cable connections for defects, and replace the
fuses.
Periodically low voltage. • Check cables and cable connections for defects and loose
connections.
• Check that the supply cable of the pump is correctly sized.
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English (GB)

Grundfos CME Series Specifications

General

Type	Centrifugal Pump
Power Supply	Electric
Maximum Operating Pressure	10 bar
Housing Material	Stainless steel
Impeller Material	Stainless steel
Material	Stainless Steel
Applications	Water boosting, industrial applications, domestic water supply, irrigation, pressure boosting in buildings
Pumped Liquid	Clean water
Approvals	CE
Seal Type	Mechanical Seal
Pressure Rating	PN10