What It Means
- The inverter has detected a DC link high voltage condition.
Lennox Split & Multi-Split
Lennox Error Code E432
Split & Multi-Split: Air conditioner (outdoor), Heat pump (outdoor)
Causes & actions from Lennox
How it shows
- Inverter code: 28
- Inverter LED flash code: Red 2 flashes, Green 8 flashes (green: flashing ×8, red: flashing ×2)
- Outdoor control 7-segment display: E432
Error occurs when the DC link capacitor voltage is greater than 480VDC. If condition is detected, outdoor unit compressor and fan stop. Anti-short cycle is initiated. If condition occurs 10 times within an hour, system is locked out. System stops. To clear, disconnect power to the indoor unit (24VAC power source to the outdoor control) which will power off the outdoor control and will open the outdoor unit contactor, which interrupts power to the inverter and then re-apply power.
Other manual wording
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060, EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060, EL19KPV,…
Error occurs when the DC link capacitor voltage is greater than 480VDC. If condition is detected, outdoor unit will stop (compressor and fan). Antishort cycle is initiated. If condition occurs 10 times within an hour, system will lock out. System will stop. To clear, disconnect power to the indoor unit (24VAC power source to the outdoor control) which will power off the outdoor control and will open the outdoor unit contactor, which interrupts power to the inverter and then re-apply power.
Applicable models & manual sources
- EL18XCV
The inverter has detected a DC link high voltage condition
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060
- EL18XPV
The inverter has detected a DC link high voltage condition
EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060
- EL19KPV
The inverter has detected a DC link high voltage condition
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060
- EL21KLV
The inverter has detected a DC link high voltage condition
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
- EL22KCV
The inverter has detected a DC link high voltage condition
EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
- SL22KLV
The inverter has detected a DC link high voltage condition
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
- SL25KCV
The inverter has detected a DC link high voltage condition
SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060
- SL28XCV
The inverter has detected a DC link high voltage condition
SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
- EL18XCV
The inverter has detected a DC link high voltage condition.
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060
- EL18XPV
The inverter has detected a DC link high voltage condition.
EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060
- EL19KPV
The inverter has detected a DC link high voltage condition.
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060
- EL21KLV
The inverter has detected a DC link high voltage condition.
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
- EL22KCV
The inverter has detected a DC link high voltage condition.
EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
- SL22KLV
The inverter has detected a DC link high voltage condition.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
- SL25KCV
The inverter has detected a DC link high voltage condition.
SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060
- SL28XCV
The inverter has detected a DC link high voltage condition.
SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
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