Bosch ACS 653 Repair Instruction page 64

Diagnostics and Testing
PROCEDURE
Refrigerant Identification
Refrigerant Identification
Refrigerant Identification
SP00D00624 2021-04-08
ERROR/WARNING
Identifier Unstable Reading
Error 3
Identifier Air Calibration Error Possible reasons:
Identifier Refrigerant Flow
Error
64
ACS 653, ACS 663 Service Manual
DESCRIPTION OF
ERROR/WARNING
Possible reason:
1. Radio transmitters and arc welders.
1. Sampling path problem:
• Brass filter clogged and/or sample
hose clogged.
• Sample hose is broken, cracked
or punctured.
• Sample hose is disconnected.
2. Identifier internal piping problem:
• One or more tubes are discon-
nected.
• One or more tubes are broken,
cracked or punctured.
• One or more tubes are clogged.
3. Identifier white paper filter defective:
• White paper filter is broken.
• White paper filter is clogged.
• White paper filter is disconnected.
4. Identifier air intake or air exhaust
clogged.
5. Identifier solenoid leaking during
calibration.
Possible reasons:
1. Sampling path problem:
• Brass filter clogged and/or sample
hose clogged.
• Sample hose is broken, cracked
or punctured.
• Sample hose is disconnected.
2. Identifier internal piping problem:
• One or more tubes are discon-
nected.
• One or more tubes are broken,
cracked or punctured.
• One or more tubes are clogged.
3. Identifier white paper filter defective:
• White paper filter is broken.
• White paper filter is clogged.
• White paper filter is disconnected.
4. Identifier solenoid issue during
analysis:
• Identifier solenoid is clogged.
• Identifier solenoid cable is defective.
• Identifier solenoid power board
issue.
Robert Bosch GmbH