GREE DC INVERTER HEAT PUMP CONDENSING UNIT SERVICE MANUAL
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Inverter compressor QXFS-B238zX070.
Inverter compressor QXFS-D280zX070.
Inverter compressor QXAS-F428zX450L.
Step 2:
Judge whether the operating noise of the compressor is normal, and whether there is a sharp noise or
obvious scraping. If there is a normal compressor working nearby, compare their operating noise.
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