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11.02
Part 5 Maintenance
5.2 Trouble shooting
Fig. 19: Failure indication
general
5.2.1 electronic regulator
failure indication
Fig. 20: electronic regulator
Failure indication
Cause
5.2.1.1 F1 sensor pressure
dewpoint defective
5.2.1.2 F2 sensor ambient
temperature defective
5.2.1.3 EH EEPROM:
electronic regulator
5.2.1.4 EL electronic regulator
defective
5.2.1.5 FH refrigerant-
overpressure
5.2.1.6 EU low voltage
5.2.1.7 H1 dew point too high
5.2.1.8 L1 dew point too low
Remedy
Check sensor connection, replace sensor
Replace regulator
Restart CA-dryer, if not possible:
Replace regulator
Restart CA-dryer, if not possible:
Replace regulator
See 5.2.5
Ensure electric power supply acc. to technical data.
See 5.2.4
See 5.2.6.3
CA-dryer stopped
Display changes be-
tween set value and
failure indication
(refrigerant overpres-
sure)
Failure indication: CA-dryer
stopped.