Carrier 30AWH004HB User Manual

84
30AW
Diagnostic
6
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Are the connections of cables and
connectors correct?
Check and correct the
cabling & connections
Is the compressor
functional?
Has there been a refrigerant
leak?
Compressor lock - replace
Does the electronic expansion
valve operate normally?
Check TE and TS Sensors, replace
if defective
Check expansion valve, replace if
defective
Check GMC & inverter Board – if
defective, replace
Fault code 28 – Discharge temperature error
Fault code 27 – Compressor lock
Is the protective control, such
as discharge temperature
release, normal?
Are the connections of
cables and connectors
correct?
Check and correct the
cabling & connections
Check parts, if defective
replace
Is the refrigerant charge correct?
Does and overload condition exist?
Are the resistance characteristics of the TD
sensor normal?
Check and correct the
refrigerant charge
Dele
te the cause of
overload
Replace the TD sensor
Check Inverter board,
replace if defective
NO
NO
NO NO
NO
YES
YES
YES YES
YES
NO
YES
NO
YES
YES
NO
NO
NO
YES
YES
SM_30AW.indd 84 14-03-2011 14:45:37

Carrier 30AWH004HB Specifications

General

Brand	Carrier
Model	30AWH004HB
Category	Air Conditioner
Language	English