YASKAWA iQpump1000 User Manual page 166

4.6 iQpump Presets and Functions
HOA Keypad Display
Low Suction Pressure
Cause
Insufficient suction pressure is present.
HOA Keypad Display
Low Water in Tank
Cause
The water level in the tank is too low.
166
Low Suction Pressure
• Check pressure switch contact for correct operation.
• Check control wiring to drive terminal strip from pressure switch contact.
• Check to make sure that suction pressure is present by means of a separate measuring device.
Low Water in Tank
• Check pressure switch contact for correct operation.
• Check control wiring to drive terminal strip from pressure switch contact.
• Check to make sure that suction pressure is present by means of a separate measuring device.
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual