Trouble Shooting - Trane 4TXM2318BF300AA Service Manual

6.9 Trouble Shooting

[1] Outdoor EEPROM Failure
if faulty disappears
after powe on again
[2] IPM Over Current or Short Circuit
Check if wire of electric box
is correct , and if compressor
wire is fixed well
If compressor is
normal(compressor coil
resistor, insulation)
If power module is normal
Solve the failures due
to relative information
N
Ckeck outdoor PCB,
If faulty ,replace it.
Y
Y
Y
N
Correct the wiring due to diagram
N
Repalce compressor
N
Replace power module
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