SiUS281811EA Troubleshooting by Error Codes
Part 6 Service Diagnosis 211
U4 - 01 Indoor-outdoor transmission error Refer to the U4 flowchart.
UA - 13
Refrigerant type error The type of refrigerant used for the indoor unit is different from
that used for the outdoor unit.
UA - 15
Not applicable for self-cleaning decoration panel
[when the self-cleaning decoration panel
is mounted]
An outdoor unit is not applicable for the self-cleaning decoration
panel is connected.
UA - 17 Incorrect electric heater capacity setting Refer to page 287.
Error code
Troubleshooting
Description of error Description of diagnosis
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