Error Diagnosis And Troubleshooting Without Error Code; Remote Maintenance - MrCool DIY-MULTI2-18HP230C Service Manual

6. Error Diagnosis and Troubleshooting Without Error Code

WARNING
Be sure to turn off unit before any maintenance to prevent damage or injury.
6.1

Remote maintenance

SUGGESTION: When troubles occur, please check the following points with customers before field maintenance.
No.
6.2 Field maintenance
Problem
1 Unit will not start
2 The power switch is on but fans will not start
3 The temperature on the display board cannot be set
4 Unit is on but the wind is not cold(hot)
5 Unit runs, but shortly stops
6 The unit starts up and stops frequently
7 Unit runs continuously but insufficient cooling(heating)
8 Cool can not change to heat
9 Unit is noisy
 Troubleshooting 18
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Solution