Converter Fault Codes - Edwards EOSi Series Instruction Manual

Cause Pressure switch out of order
Remedy Replace the pressure switch.
Fault Pump element outlet temperature above normal
Cause Oil level too low
Remedy Check and fill the oil. Refer to
Cause Cooling air or cooling air temperature is not sufficient or relative humidity is too
high
Remedy Check for the cooling air restriction or increase the ventilation of the pump room.
Prevent the recirculation of the cooling air. If installed, check the capacity of the
pump room fan.
Cause Oil cooler clogged
Remedy Clean the cooler.
Cause Oil filter clogged
Remedy Replace the oil filter.
Cause Scavenge line clogged
Remedy Clean the scavenge line.
Cause By-pass valve malfunctioning
Remedy Test the valves.
Cause Degraded oil
Remedy Check the service intervals. Refer to
Cause Temperature of the process air too high
Remedy Check the process air temperature.
Cause Pump element out of order
Remedy Contact us.

10.2 Converter fault codes

If the converter detects the problem, a specific code (Main motor converter alarm) and
the fault code is shown on the controller display.
Refer to for the important error codes. If another code appears, contact us.
6996022910_B
6996022910_B - Fault finding
During operation
Preventive maintenance schedule
Page 113
on page 97.
09/2021 - ©Edwards Limited
on page 100.