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Hint
142
Error
Code
222
Overcooling inlet sensor error (overcooling inlet sensor of HR Unit6 open/short)
223
Overcooling outlet sensor error (overcooling outlet sensor of HR unit6 open/short)
224
Communication error (no outdoor unit signal for 3 min from HR unit6)
225
Fluid pipe sensor error (fluid pipe sensor of HR Unit7 open/short)
226
Overcooling inlet sensor error (overcooling inlet sensor of HR Unit7 open/short)
227
Overcooling outlet sensor error (overcooling outlet sensor of HR unit7 open/short)
228
Communication error (no outdoor unit signal for 3 min from HR unit7)
229
Fluid pipe sensor error (fluid pipe sensor of HR Unit8 open/short)
230
Overcooling inlet sensor error (overcooling inlet sensor of HR Unit 8 open/short)
231
Overcooling outlet sensor error (overcooling outlet sensor of HR unit8 open/short)
232
Communication error (no outdoor unit signal for 3 min from HR unit8)
233
Fluid pipe sensor error (fluid pipe sensor of HR Unit9 open/short)
234
Overcooling inlet sensor error (overcooling inlet sensor of HR Unit9 open/short)
235
Overcooling outlet sensor error (overcooling outlet sensor of HR unit9 open/short)
236
Communication error (no outdoor unit signal for 3 min from HR unit9)
Central Controller Errors
Error
Code
240
Communication error (PC central controller
242
Communication error (central controller
246
Data in time out error from central controller
247
Communication error (ACM Client
248
Communication error (ACP Client
250
Checksum error
251
Communication error (AC Smart to 128-room expansion kit)
Pre-Tech Support Checklist
If the product malfunctions, please check the following before calling the service center.
Symptom
Description
Description
indoor unit)
ACM Server)
ACP Server)
Check
I-GW)
Actions
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