Quattroflow QF1200 - Page 24

Quattroflow Installation, Operation & Troubleshooting Guide
Rev. 0
Page 24 of 25 www.quattroflow.com
Continuation of Troubleshooting Table 1:
Operating troubles
Cause / remedial action
Pump does not start
Pump does not prime
Output is not obtained
Pressure head is not obtained
Output is not consistent
Pump operates noisy / vibrations
Pump is leaky
Motor gets to warm
Too high pulsation
Diaphragm damage
X
X
Bearings are worn or defective and must be replaced.
X
The valves are dry (e.g. not in use for a long time), deformed
or worn. Change valve or wet the pump.
X
The diaphragm is burst
-> replace with respective elastomer service-kit.
X
X
X
X
O–rings between valve plate and pump housing are defective
-> Replace with respective elastomer service-kit.
X
X
The clamping ring screw got loose
-> fix it with the defined torque.
X
Parameters of the control panel are wrong
-> check basic settings.
X
Pump may not start in manual mode if configured for remote
operation (e.g. external 4-20mA signal); check parameter
settings.
X
Pump after SIP cooled down too fast - slow cooling with room
temperature.
X
Too high vacuum on suction side of the pump.
X
Diaphragm are not correctly installed on supports
-> see QF manual.
X
Pump chamber is not completely vented
-> see chapter Start-up operations.
X
Check chemical compatibility of elastomers.
Table 13 Troubleshooting Table 2