7.4 The pump surface temperature is high
▪ The ambient temperature is too high.
▪ The cooling air supply is insucient or is too hot.
▪ The process gas is too hot or the maximum connuous operang pressure has
been exceeded.
7.5 The pumping speed is poor or if pump down me is too long
▪ The connecng pipelines are too small in diameter.
▪
The connecng pipelines are too long.
▪
The inlet strainer is blocked.
▪
There is a leak in the system.
▪
The inverter is current liming the supply.
▪
The pump is in idle mode.
Page 31
A73101880_F - Fault nding
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