Midea DLFSAB Series User Manual

DLFSAB and DLFLAB: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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DIAGNOSIS AND SOLUTION (CONT.)
PC 00 - IPM malfunction or IGBT over-strong current protection Diagnosis and Solution
Description: When the voltage signal that the IPM sends to the compressor drive chip is abnormal, the LED displays “PC 00”
and the AC turns off.
Recommended parts to prepare:
• Connection wires
• IPM module board
• Outdoor fan assembly
• Compressor
• Outdoor PCB
Troubleshooting and Repair:
NOTE: For certain models, the outdoor PCB cannot be removed separately. In this case, the outdoor electric control box should
be replaced as a whole.
Check the wiring between
PCB and compressor.
Does an error exist?
Ensure proper connections or
replace the wires and connectors.
YES
Check the IPM.
NO
Is it in working order?
Replace the IPM board or
replace the outdoor PCB.
NO
Check the outdoor fan and the
outdoor unit ventilation.
YES
Is it in working order?
Refer to the “Fan Speed is Out of Control”
malfunction solution.
NO
Check the compressor
resistance values.
YES
Are they within
acceptable parameters?
Replace the compressor.
Replace the outdoor PCB.
YES
NO

Midea DLFSAB Series Specifications

General

Brand	Midea
Model	DLFSAB Series
Category	Air Handlers
Language	English