Fault Codes - Samsung HHSM-G500005-1 Installation Manual

Fault Codes

Error Contents
Code
101
Indoor unit communica-
tion error
102
Indoor unit/outdoor unit
communication time-out
error: errors in more than
6 packets
121
Indoor temperature sen-
sor (open/short error)
122
Indoor unit Eva in sensor
(Open/Short)
128
Indoor unit Eva in sensor
disconnection
153
Indoor floating switch
secondary detection
202
Indoor/outdoor commu-
nication error (1 min)
203
Communication error
between indoor/outdoor
INVIMAIN <-> MICOM
(1 min)
221
Outdoor temperature
sensor error
237
COND temperature sen-
sor error
251
[Inverter] Emission tem-
perature sensor error
78
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Measure
Check the communication cable of indoor
unit. Check the DC output voltage at the com-
munication terminal.
Check the outdoor communication cable
connection. Check DC output voltag and the
communication terminal.
Check indoor unit room temperaute sensor.
Check indoor unit PCB connector CN41
(White)
Check indoor unit pipe sensor. Check indoor
PCB connector CN41 (White)
Check the disconnection of indoor unit pipe
sensor.
Check indoor unit float sensor. Check indoor
PCB connector CN5 (black)
Check the communication connection
between indoor and outdoor units. Check the
power line and communication cable connec-
tion status.
Check MAIN MICOM
Check INVERTER MICOM
Check sensor connection status
Check sensor location
Check sensor resistance
Check sensor connection status
Check sensor location
Check sensor resistance
Check sensor connection status
Check sensor location
Check sensor resistance
Product op. in Error Type
error condition
Outdoor unit /
Comp. / Ind. unit
Operation off Communication
error
Operation off Communication
error
Operation off Indoor sensor error
Operation off Indoor sensor error
Operation off Indoor sensor error
Operation off Self diagnostic
error
Operation off Communication
error
Operation off Communication
error
Operation off Outdoor sensor
error
Operation off Outdoor sensor
error
Operation off Outdoor sensor
error