MCAC-UTSM-201406 Midea R410A Full DC Inverter Split Type Series Technical Manual
68
L2: DC generatrix high voltage error
Step 1: Check the DC voltage between P and N terminal, the normal value should be
510V~580V, if the voltage is higher than 580V, go to step 2.
Step 2: Check the voltage between two electrolytic capacitors, the normal value should be
510V±30V or 310V±30V, if not in the range then the Main board has malfunction, it
needs to be replaced.
Notes: Turn the measure range of the meter to 1kV and measure the voltage between two electrolytic
capacitors.
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