Edwards ELD500 Series

D135-10-880C - Troubleshooting
Page 96
Table 24 Fault finding
No. Displayed message Description and possible solutions
W14
Exhaust oil filter service
interval expired
The chosen service interval for the exhaust oil
filter is expired.
Control and/or replace the exhaust filter insert.
W17
Fore pump service interval
expired!
The service interval for the fore pump is expired.
Service the fore pump
W21 EEPROM write time out
EEPROM defective
MC 68 defective
W22
EEPROM parameter queue
overflow
Software problem, contact Edwards service.
E23
24 V for external output 1 is
too high.
The 24 V voltage for the external output 1 is too
high
Check if an external voltage has been applied to
the 24 V output.
E24
24 V for external output 1 is
too low.
The 24 V voltage for the external output 1 is too
low.
Fuse F2 on the wiring backplane has blown
E25
Lowered valve voltage too low
(< 7V).
I/O board is faulty.
MC 68 defective.
E26
24 V for external output 2 is
too low.
The 24 V voltage for the external output 2 (RS232)
is too low.
Fuse F2 on the I/O board has blown
E27
24 V for external output 3 is
too low.
The 24 V voltage for the external output 3
(optional) is too low.
Fuse F1 on the I/O board has blown
W28
Real time clock reset! Enter
date and time!
Battery at MC68 is discharged or faulty.
MC68 had been replaced.
E29
24 V supply for fans is too low
(< 20 V).
Fuse F1 on wiring backplane has blown.
E30
24 V of the remote control is
too low (< 20 V).
Fuse F1 on the I/O-board has blown.
W31
The offset voltage of the
pre-amplifier is too high
(> 5 mV).
The pre-amplifier is faulty.
W32
Pre-amplifier temperature is
too high (> 65 °C).
Ambient temperature is too high.
Air filter dirty.
W33
Pre-amplifier temperature is
too low (< 2 °C).
Ambient temperature is too low.
Temperature sensor is faulty.