Carrier 42QFD048D8S Service Manual page 106

TS10-L: Over voltage or too low voltage protection diagnosis and solution
Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit.
Recommended parts to prepare:
• Power supply wires
• IPM module board
• PCB
• Reactor
Troubleshooting and repair:
 Troubleshooting 