KSB Delta Macro F User Manual

9 Trouble-shooting
50 of 92
KSB Delta Macro
1983.843/04-EN
A B C D E F G H I J K L M Possible cause Remedy
4)
- ✘ ✘ ✘ ✘ ✘ - - ✘ - - ✘ ✘ Shut-off valves fully or partially
closed
Check, open as necessary.
- - - ✘ ✘ - - - ✘ - ✘ - ✘ Pump / piping not completely
vented and/or primed.
Vent and prime.
- - - ✘ ✘ ✘ - - ✘ ✘ ✘ - ✘ Check valve in bypass line defective Replace.
- - - - - ✘ - - - - - - - Insufficient inflow Restore normal inflow. Connect
accumulator.
- - - - - ✘ - - ✘ ✘ - - ✘ Pump runs sluggishly. Have pump repaired by a
specialist.
- - - - - - - ✘ - - - - - Defective mechanical seal Replace.
- - ✘ - - - - - ✘ - - - ✘ Incorrect pre-charge pressure of
accumulator
Set correct pre-charge pressure.
Replace membrane.
✘ - ✘ ✘ - - - - - ✘ ✘ - - Inlet-side pressure switch defective
or set incorrectly.
Check the value set at the pressure
switch; adjust if required.
- - - - - - - - ✘ - ✘ ✘ ✘ Defective time relay or time set
incorrectly.
Check time relay. Correct
minimum operating time if
required.
- - - - - - - - - - - ✘ - System leaking. Restore system integrity.
- - ✘ - - ✘ ✘ - - - ✘ ✘ - Discharge-side pressure switch
defective or set incorrectly.
Check the value set at the pressure
switch; adjust if required.
✘ - - - - - - - - ✘ - - - Intermittent voltage fluctuations Press reset/fault acknowledgement
key.
- - - ✘ - - - - ✘ ✘ - - ✘ Defective check valve Check and replace if necessary.
- - - ✘ ✘ ✘ - - ✘ - ✘ - - Pump running in the wrong
direction of rotation.
Interchange two of the phases of
the power supply.
- - - ✘ - ✘ - - - - ✘ ✘ - Inlet pressure lower than specified
in the purchase order
Connect suction-side inlet tank.
Contact the manufacturer.
- ✘ - - - ✘ - - - ✘ ✘ - - Water extraction higher than
specified in the purchase order
Contact the manufacturer.

KSB Delta Macro F Specifications

General

Brand	KSB
Model	Delta Macro F
Category	Water Pump
Language	English