40 models
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060, EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060, EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060, EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060, EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060, SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060, SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060, SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
Air conditioner (outdoor), Heat pump (outdoor)
How it shows - Outdoor control 7-segment display: E411
Low pressure fault error count reached 5 strikes. The low pressure cut-out is at 40PSIG and resets at 90PSIG. Confirm that the system is properly charged with refrigerant. Check for clogged TXV, blockage to indoor unit blower motor, dirty filters or clogged refrigerant filter. Confirm that the evaporator coil is clean. The alarm clears after a power reset.
Other manual wording (1 of 4)
SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060, SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
Low pressure fault error count reached 5 strikes. The low pressure cut-out is at 25PSIG and resets at 40PSIG. Confirm that the system is properly charged with refrigerant. Check for clogged TXV, blockage to indoor unit blower motor, dirty filters or clogged refrigerant filter. Confirm that the evaporator coil is clean. The alarm clears after a power reset.
Other manual wording (2 of 4)
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
Low pressure fault error count reached 5 strikes. The low pressure cut-out is at 25PSIG and resets at 40PSIG. Confirm that the system is properly charged with refrigerant. Check for clogged TXV, blockage to indoor unit blower motor, dirty filters or clogged refrigerant filter. Confirm that the evaporator coil is clean. Confirm the suction pressure transducer is providing the correct suction pressure reading compared to manifold gauge pressure, if not check pressure tranducer connections. The alarm clears after a power reset.
Other manual wording (3 of 4)
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
Low pressure fault error count reached 5 strikes. The low pressure cut-out is at 35 PSIG and resets at 80 PSIG. Confirm that the system is properly charged with refrigerant. Check for clogged TXV, blockage to indoor unit blower motor, dirty filters or clogged refrigerant filter. Confirm that the evaporator coil is clean. The alarm clears after a power reset.
Other manual wording (4 of 4)
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060
Low pressure fault error count reached 5 strikes. The low pressure cut-out is at 35PSIG and resets at 80PSIG. Confirm that the system is properly charged with refrigerant. Check for clogged TXV, blockage to indoor unit blower motor, dirty filters or clogged refrigerant filter. Confirm that the evaporator coil is clean. The alarm clears after a power reset.
Applicable models & manual sources
- EL18XCV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060
EL18XCV manual, page 37
- EL18XPV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060
EL18XPV manual, page 37
- EL22KCV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
EL22KCV manual, page 40
- SL25KCV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060
SL25KCV manual, page 36
- SL28XCV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
SL28XCV manual, page 30
- SL22KLV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
SL22KLV manual, page 43
- EL21KLV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
EL21KLV manual, page 46
- EL19KPV
The low pressure fault has occurred 5 times within one hour. As a result, the outdoor unit is locked out.
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060
EL19KPV manual, page 43