DC Link Voltage Sensors Errors E469, E496, E369, & E396 – Trane Commercial HVAC Help Center

The E-396/496 I have seen the most, these are usually a result in losing the VDC from the EMI or Transformer to the Inverter or Inverter to the Fan PCB Board.
Losing one fuse on EMI#1 or one leg from the Transformer will generate these alarms.
EMI failure Losing voltage at CN23 to CN13 at the inverter will generate this alarm .
Inverter board failure will generate this, the VDC from the CN15 Connector form the inverter to the CN401 at the FAN PCB connector is the path that would generate this.
This voltage as per Samsung Engineering should be (Voltage in DC Link is below 150V or over 410V.)
Below is the troubleshooting tree for E-369/396/469/496 as listed in the Error codes and diagnostics Manual.
VRF-SVM046A-EN
As per Samsung Engineering on the Inverter Reactors :
The L (Inductor) in the LC filter applied to the inverter product.
Inverters convert AC input power into DC power and then use PWM (Pulse Width Modulation) to generate AC output at the desired frequency.
LC filters are designed to address harmonics and power factor degradation that occur when converting AC input to DC.
Transpower part number:
CNT06987 2 1 CONTROL; TRANSPOWER

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