Watson-Marlow 323E, 323S, 323U and 323Du User Manual
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19.1 Error messages
If a fault condition is detected the pump will stop. All keys will be disabled. The dis-
play will show the error number:
Error
Error condition
Suggested action
0
RAM write error
Attempt to reset by switching power OFF / ON.
Or seek support
1
RAM corruption
Attempt to reset by switching power OFF / ON.
Or seek support
2
OTP ROM error /
corruption
Attempt to reset by switching power OFF / ON.
Or seek support
3
OTP ROM read
error
Attempt to reset by switching power OFF / ON.
Or seek support
5
Unknown pump
type
Check the interface card and cables. Attempt to
reset by switching power OFF / ON. Or seek support
7
Display failure
Seek support
8
Wrong key-press
Attempt key-press again. Attempt to reset by
switching OFF / ON
9
Motor stalled
Stop pump immediately. Check pumphead and
tube. Power OFF/ON may reset. Or seek support
10
Tacho fault
Stop pump immediately. Power OFF/ON may reset.
Or seek support
14
Over speed
Stop pump immediately. Power OFF/ON may reset.
Or seek support
15
Over current
Stop pump immediately. Check system. Power
OFF/ON may reset. Or seek support
16
Over voltage
Stop pump immediately. Check mains voltage se-
lector switch. Check supply. Power OFF/ON may
reset. Or seek support
17
Under voltage
Stop pump immediately. Check mains voltage se-
lector switch. Check supply. ON/OFF may reset. Or
seek support
18
Watchdog error
Attempt to reset by switching power OFF / ON.
Or seek support
19
Over temperature
Stop pump immediately. Turn OFF. Seek support
20
Signal out of
range
Check analogue control signal range. Trim signal as
required. Or seek support
21
Over signal
Reduce the analogue control signal
22
No signal
Connect analogue control signal or return to manual
control
25
Network not
detected
Turn OFF. Check network and connections. Or seek
support
26
RS232 fault
Turn OFF. Check network and connections. Or seek
support
27
RS232 lost
Turn OFF. Check network and connections. Or seek
support
33
Unrecognised
keypress
Attempt keypress again. Attempt to reset by
switching power OFF/ON. Otherwise seek support.
35
Work overload
Turn OFF. Check power supply. Check pumphead
and tubing. Wait 30 minutes. Power ON may reset.
Otherwise seek support.
ERR
General error
condition
Turn OFF. Seek support