Malfunctions; Fault Of T3A Or T3B - Mitsubishi Electric R410A Technical Manual
R410a tropical split type ac
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Also See for R410A:
- Service handbook (346 pages) ,
- Operating and installation instructions (54 pages) ,
- Manual (18 pages)
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R410A Tropical Split Type Technical Manual
Malfunctions:
About the Fault of T3A or T3B, High pressure protection, low pressure protection.
Please refer to the following:
Fault of T3A or T3B
Judge 1: Whether the sensor is break
off.
No
Judge 2: Whether the sensor is
malfunction.
Validate: Short-connect the outdoor
ambient temperature sensor, check
whether it can run normally
No
Judge 3: PCB is malfunction
Replace PCB
Outdoor Units
Yes
Connects it well.
Yes
Replace it.
Troubleshooting
117
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Table of Contents
Troubleshooting
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