Bosch ACS 753 Repair Instructions page 56

Diagnostics and Testing
PROCEDURE
Recovery
Recovery
Recovery
Recovery
Recovery
Recovery
Recovery
RPM Calibration
SP00D00609 2018-03-26
ERROR/WARNING
Purity test failed. Recover
contaminated refrigerant from
system and hoses (if the re-
frigerant identifier is present)
Communication problems
Refrigerant Identifier (if the
refrigerant identifier is pres-
ent)
Identifier error 1, unstable
output. Move unit away from
any EMF or RFI sources
(if the refrigerant identifier is
present)
Identifier error 2, high output.
Move unit away from any
EMF or RFI sources (if the re-
frigerant identifier is present)
Identifier error 3, air calibra-
tion low. Check ventilation
(if the refrigerant identifier is
present)
Identifier error 4, temperature
out of range (if the refrigerant
identifier is present)
Identifier error 5, no flow.
Identifier filter and sample
tube may need replacement
(if the refrigerant identifier is
present)
Air Flow Calibration Error
(except ACS 753 units)
ACS 753, ACS 763, ACS 863 Service Manual
DESCRIPTION OF ERROR/
Refrigerant analysis test failed
(generic error). Select RETRY or
Warning the user that is unable to
communicate with the refrigerant
analyzer. Select OK icon to terminate
Analysis refrigerant test failed
Select RETRY or ESC icon
Analysis refrigerant test failed
Select RETRY or ESC icon
Analysis refrigerant test failed
Select RETRY or ESC icon
Analysis refrigerant test failed
Select RETRY or ESC icon
Analysis refrigerant test failed
Select RETRY or ESC icon
Error that appears when the differ-
ence between speed fan on and
speed fan off is less than 200 RPM.
Select RETRY or ESC icon
56
WARNING
ESC icon
(known error 1)
(known error 2)
(known error 3)
(known error 4)
(known error 5)
Robert Bosch GmbH