Nilfisk-Advance MD 421-P Manual page 10

C6 Low Sensor 1. Voltage supply for sensors too low
Supply Voltage
C7 No Response 1. No communication between display and control
Error board
1. Insufficient water supply
C8 Low Tank
Level 2. Water supply valve not open
C9 High Tank 1. Water supply valve not closed
Level
1. Insufficient water supply
C11 Warning
Cri. Inlet press. 2. Booster will return to standby mode after 20 sec.
If this error occurs 3 times within 20 min. Error C2
occurs.
1. Insufficient water supply.
C13 Warning
The machine will keep on working as always, but the
Low inlet press.
maximum speed of the pump will be reduced until suf-
ficient inlet pressure is present.
1. Booster start condition changed to flow, due to
C14 Warning
leakage start leakage in pipe
1. Pressure signal from pumptop sensor, out of range
C20 Low Sensor
Signal P-Pump-
top
1. Temparature signal from pumptop, sensor, out of
C21 Low Sensor
Signal T-Pump- range
top
1. Pressure signal form inlet sensor, out of range
C22 Low Sensor
Signal P-Inlet
1. Temperature signal from inlet sensor, out of range
C23 Low Sensor
Signal T-Inlet
1. Signal from block sensor, out of range
C24 Low Sensor
Signal block
1. Signal from flow sensor, out of range
C25 Low Sensor
Signal flow
1. Pressure signal from pumptop sensor, out of range
C30 High Sensor
Signal P-Puump-
top
1. Temperature signal from pumptop sensor, out of
C31 High Sensor
Signal T-Pump- range
top
1. Pressure signal from inlet sensor, out of range
C32 High Sensor
Signal P-Inlet
1. Temperature signal from inlet sensor, out of range
C33 High Sensor
Signal T-Inlet
110007944-EN
Software Manual_Pegasus.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Contact your local service technician.
1. Check correct water supply
2. Secure suffcient air supply to valve
3. Contact your local service technician.
1. Secure sufficient air supply to the
valve.
2. Contact your local service technician.
1. Secure suffcient water supply or re-
duce consumption
2. Check inlet filter for impurities/rinse
filter
3. Contact your local service technician.
1. Secure sufficient water supply or
reduce consuption
2. Check inelt filter for impurities/Rinse
filter
1. Check for leakage in pipe system.
2. Press "off" button
3. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
1. Press "off" button
2. If error reoccurs, contact your local
service technician.
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