Pioneer Mini Split Error Codes

29 codes · manual-verified where marked · draft entries clearly flagged

E-codes

Pioneer E0 error code
E0 on Pioneer units means the indoor and outdoor units are not exchanging communication normally. Power off fo…
Pioneer E1 error code
E1 on most Pioneer indoor units means the indoor room temperature sensor is reading open, shorted, or out of r…
Pioneer E2 error code draft
E2 returns after one safe reset. Tell them the Pioneer manual meaning is: IDU coil temperature sensor failure …
Pioneer E3 error code draft
E3 returns after one safe reset. Tell them the Pioneer manual meaning is: ODU coil temperature sensor failure …
Pioneer E4 error code
E4 on Pioneer units points to refrigerant leakage / gas leakage or, on some manuals and series, a general cool…
Pioneer E5 error code draft
E5 appears or returns. Tell them the Pioneer manual meaning is IDU/ODU mismatched failure. Technician boundary…
Pioneer E6 error code draft
E6 returns. Tell them the Pioneer manual meaning is: IDU PG fan motor/DC fan motor works abnormal (IDU failure…
Pioneer E7 error code draft
E7 returns after one safe reset. Tell them the Pioneer manual meaning is: ODU ambient temperature sensor failu…
Pioneer E8 error code draft
E8 returns after one safe reset. Tell them the Pioneer manual meaning is: ODU discharge temperature sensor fai…
Pioneer E9 error code draft
E9 returns, the outdoor unit will not start, or a breaker trips. Tell them the Pioneer manual meaning is: IPM/…

Pioneer F0 error code draft
F0 returns after one safe reset. Tell them the Pioneer manual meaning is: Infrared customer feeling test senso…
Pioneer F1 error code draft
F1 returns after one safe reset or appeared after service. Tell them the Pioneer manual meaning is: Electric p…
Pioneer F2 error code draft
F2 returns after one safe reset. Tell them the Pioneer manual meaning is: Discharge temperature sensor failure…
Pioneer F3 error code draft
F3 returns after the safe check. Tell them the Pioneer manual meaning is: ODU coil temperature failure protect…
Pioneer F4 error code draft
F4 appears or returns after one reset. Tell them the Pioneer meaning is cooling system gas flow abnormal prote…
Pioneer F5 error code draft
F5 returns, the outdoor unit will not start, or a breaker trips. Tell them the Pioneer manual meaning is: PFC …
Pioneer F6 error code draft
F6 returns, the outdoor unit will not start, or a breaker trips. Tell them the Pioneer manual meaning is: Comp…
Pioneer F7 error code draft
F7 returns, the outdoor unit will not start, or a breaker trips. Tell them the Pioneer manual meaning is: IPM …
Pioneer F8 error code draft
F8 returns or heating/cooling mode changeover is abnormal. Tell them the Pioneer manual meaning is 4-way value…
Pioneer F9 error code draft
F9 returns after one safe reset or appeared after service. Tell them the Pioneer manual meaning is: Module tem…

Pioneer P0 error code draft
P0 returns, the outdoor unit will not start, or a breaker trips. Tell them the Pioneer manual meaning is: IPM …
Pioneer P1 error code
P1 on Pioneer units means the outdoor unit detected abnormal voltage or current. The system is protecting its …
Pioneer P2 error code draft
P2 returns or any breaker trips. Tell them the Pioneer manual meaning is: Over-current protection. Technician …
Pioneer P4 error code draft
P4 means the outdoor discharge pipe temperature is too high or the discharge-temperature protection circuit is…
Pioneer P5 error code draft
P5 DIY part Turn the unit off, clean the washable indoor filter, and make sure the indoor air inlet and outlet…
Pioneer P6 error code draft
P6 returns after the safe check. Tell them the Pioneer manual meaning is: Overheating protection on Cooling mo…
Pioneer P7 error code draft
P7 returns after the safe check. Tell them the Pioneer manual meaning is: Overheating protection on Heating mo…
Pioneer P8 error code draft
P8 appears when outdoor conditions are within the unit's normal range, or if it returns after airflow is …
Pioneer P9 error code draft
P9 returns, the outdoor unit will not start, or a breaker trips. Tell them the Pioneer manual meaning is: Comp…