Samsung AVXCSH022EE, Service Manual

Page: 146 / 508

Troubleshooting Troubleshooting
■
Error display order
(cont.)
Error mode Cause Measures to take
Product's operation condition during error(Main parts status)
Diagnosis
method
Frequency Outdoor unit status
Error occurred
indoor unit.
Other indoor units
163 Indoor unit remote controller option input is wrong/not entered.
t3FFOUFSSFNPUFDPOUSPMMFSPQUJPO
1 Normal operation Operation off Normal operation page 4-74
170 Mixed use of Fahrenheit/Celsius setup (occurs in indoor unit with Celsius setup)
t
Input Celsius options in the remote controllers for error free indoor units (Celsius using regions) 1 Normal operation Operation off Normal operation page 4-75
180 1
st
simultaneous MCU SOL Valve cooling/heating opening
t$IFDLUIFBEESFTTPG.$640-WBMWFDPOOFDUPSBOEUIFQPTJUJPOPGDPPMJOHIFBUJOHDPOOFDUJPO
t$IFDLUIFTFBMJOHDPOEJUJPOPG40-7BMWFDPJM
t$IFDLJGUIFTBNFFSSPSPDDVSTBGUFSSFTFUUJOHUIFTFUTUPQQFE06
t8IFOQPXFSJTBQQMJFEUP40-7BMWFDIFDLJGJUPQFSBUFTXFMM DIFDLUIFWBMWFXPSLJOHTPVOE
t3FQMBDFUIFWBMWFJGCSPLFO
1 Restart Restart Operation off -
181 2
nd
simultaneous MCU SOL Valve cooling/heating opening
t$IFDLUIFBEESFTTPG.$640-WBMWFDPOOFDUPSBOEUIFQPTJUJPOPGDPPMJOHIFBUJOHDPOOFDUJPO
t$IFDLUIFTFBMJOHDPOEJUJPOPG40-7BMWFDPJM
t$IFDLJGUIFTBNFFSSPSPDDVSTBGUFSSFTFUUJOHUIFTFUTUPQQFE06
t8IFOQPXFSJTBQQMJFEUP40-7BMWFDIFDLJGJUPQFSBUFTXFMM DIFDLUIFWBMWFXPSLJOHTPVOE
t3FQMBDFUIFWBMWFJGCSPLFO
2 Operation off Operation off Operation off -
185 Power input Error into indoor unit comm. line t3FDPOGJSNUIFJOEPPSVOJUDPNNMJOFDPOOFDUJPOoQPXFSMJOFJOQVU 1 Operation off Operation off Operation off page 4-76
186 Clean Unit (SPI) feedback error
t$IFDLUIFDPOOFDUJPOPG41*GFFECBDL
t$IFDLJG41*PQFSBUFTXFMM
1 Normal operation
Normal in other
functions
Normal operation page 4-77
190
While pipe testing, there are no temperature difference in EVA_IN or
temperature changes in incorrect indoor unit EVA_IN t$IFDLJGUIFJOEPPSVOJU"%%3&44JTTBNFBTUIFTFU"%%3&44PO.$6
t$IFDLUIF.$6JOEPPSVOJUTFUUJOHTXJUDI
1 Normal operation Operation off Normal operation page 4-78
191
While pipe testing, there are no temperature difference in EVA_OUT or
temperature changes in incorrect indoor unit EVA_OUT
t$IFDLJGUIFJOEPPSVOJU"%%3&44JTTBNFBTUIFTFU"%%3&44PO.$6
t$IFDLUIF.$6JOEPPSVOJUTFUUJOHTXJUDI
1 Normal operation Operation off Normal operation page 4-78
201
Comm. Error among. Indoor units and outdoor units after completing initial
tracking
Inconsistency between the number of setup IUs and the unit number setup
switches
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t$IFDLUIFTFUVQBEESFTTTXJUDIPOUIF*OEPPSVOJUhT1$#
t$IFDL*6/PTFUVQTXJUDIPOUIFPVUEPPSVOJUhT1$#
1 Operation off Operation off Operation off page 4-79
202 Comm. Error among all IUs
t$IFDLUIFDPNNMJOFTCFUXFFO*OEPPSPVUEPPSVOJUT
t$IFDLUIFNBJOTVCVOJUTFUVQTXJUDI
t$IFDLUIFOVNCFSPGJOEPPSVOJUTFUUJOHTXJUDIPOUIFPVUEPPSVOJU1$#
1 Operation off Operation off Operation off page 4-81
211 Not consecutive connection between indoor unit and 2 branch parts in MCU
t$IFDLDPOOFDUJPOQJQJOHCFU.$6BOE*6
t$IFDL.$6CSBODIQBSUTFUVQTXJUDIBOEJOEPPSBEESFTTTXJUDITFUVQ
1 Operation off Operation off Operation off page 4-86
212 If same indoor unit ADDRESS was assigned more than 3 times on MCU.
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t$IFDL.$6CSBODIQBSUTFUVQTXJUDIBOEJOEPPSBEESFTTTXJUDITFUVQ
1 Operation off Operation off Operation off page 4-87
213
When indoor unit ADDRESS was assigned to an indoor unit that was not
installed.
t$IFDLDPOOFDUJPOQJQJOHCFU.$6BOE*6
t$IFDL.$6CSBODIQBSUTFUVQTXJUDIBOE*OEPPSBEESFTTTXJUDITFUVQ
1 Operation off Operation off Operation off page 4-88
214
If outdoor unit has wrong No. of MCU
when there are more than 2 MCU connections with the same address t$IFDLDPOOFDUJPOQJQJOHCFU.$6BOE*6
t$IFDL.$6CSBODIQBSUTFUVQTXJUDIBOE*OEPPSBEESFTTTXJUDITFUVQ
1 Operation off Operation off Operation off page 4-89
4-55 Samsung Electronics
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