What It Means
- The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
- The high pressure switch has T opened 5 times within one hour. As a result, the outdoor unit is locked out. c i

Split & Multi-Split
E413 means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.
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)
Open high pressure switch error count reached 5 strikes. System is shut down. The high pressure switch for HFC410A opens at 590PSIG and closes at 418PSIG. Confirm that the system is properly charged with refrigerant. Check condenser fan motor, for clogged TXV, for blockage to indoor unit blower motor, for stuck reversing valve or clogged refrigerant filter. Confirm that the outdoor unit is clean. The alarm clears after a power reset. For heating, indoor CFM may be set too low. For zoning system, zone CFM may be set too low.
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060, EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060, SL22KLV,…
Open high pressure switch error count reached 5 strikes. System is shut down. The high pressure switch for HFC410A will open at 590PSIG and close at 418PSIG. Confirm that the system is properly charged with refrigerant. Check condenser fan motor, clogged TXV, blockage to indoor unit blower motor, stuck reversing valve or clogged refrigerant filter. Confirm that the outdoor unit is clean. The alarm clears after indoor power reset (24VAC power source to Outdoor Control)
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060, EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
Open high pressure switch error count reached 5 strikes. System is shut down. The high pressure switch for R454B opens at 590PSIG and closes at 418PSIG. Confirm that the system is properly charged with refrigerant. Check condenser fan motor, for clogged TXV, for blockage to indoor unit blower motor, for stuck reversing valve or clogged refrigerant filter. Confirm that the outdoor unit is clean. The alarm clears after a power reset. For heating, indoor CFM may be set too low. For zoning system, zone CFM may be set too low.
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060, EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
Open high pressure switch error count reached 5 strikes. System is shut down. The high pressure switch for R454B will open at 590PSIG and close at 418PSIG. Confirm that the system is properly charged with refrigerant. Check condenser fan motor, clogged TXV, blockage to indoor unit blower motor, stuck reversing valve or clogged refrigerant filter. Confirm that the outdoor unit is clean. The alarm clears after indoor power reset (24VAC power source to Outdoor Control)
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
Open high pressure switch error count reached 5 strikes. System is shut down. The high pressure switch for R454B opens at 590 PSIG and closes at 418 PSIG. Confirm that the system is properly charged with refrigerant. Check condenser fan motor, for clogged TXV, for blockage to indoor unit blower motor, for stuck reversing valve or clogged refrigerant filter. Confirm that the outdoor unit is clean. The alarm clears after a power reset. For heating, indoor CFM may be set too low. For zoning system, zone CFM may be set too low.
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL18XCV, EL18XCV-024, EL18XCV-036, EL18XCV-048, EL18XCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL22KCV, EL22KCV-024, EL22KCV-036, EL22KCV-048, EL22KCV-060
The high pressure switch has opened 5 times within one hour. As a result, the outdoor unit is locked out.
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
Heat pump (outdoor)
Open high pressure switch error count reached 5 strikes. System is shut down. he high pressure switch for R454B will open at 590 PSIG and close at 418 PSIG. Confirm that the system is properly charged with refrigerant. Check condenser fan motor, clogged TXV, blockage to indoor unit blower motor, stuck reversing valve or logged refrigerant filter. Confirm that the outdoor unit is clean. The alarm clears after ndoor power reset (24VAC power source to Outdoor Control)
The high pressure switch has T opened 5 times within one hour. As a result, the outdoor unit is locked out. c i
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
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