When your Midea air conditioning unit shows the P4 error code, one of the most commonly occurring errors in Midea AC units, you should immediately look for a defect in the inverter compressor drive because the error usually points to a driver chip that cannot detect the correct rotor position for the compressor. The likely causes of a P4 error code span a range of potentially faulty parts and connections in the outdoor sub-unit. Possible causes of a Midea P4 error include a problem in the wiring system, defect in the IPM (Intelligent Power Module), trouble in the outdoor fan assembly, malfunction in the outdoor PCB, and fault in the compressor unit.
To begin troubleshooting a P4 fault, turn off your Midea air conditioning unit, unplug it from the power socket, and check the outdoor AC sub-unit, which should be in an open, well-ventilated area at all times and have the correct cooling capacity for the size of your living areas. If you can access the internal parts of the outdoor unit, then clean them carefully and thoroughly, especially the compressor and fan units. Check the wiring attachments to the PCB mainboard terminals, as well. They should be clean, and there should be no loose or damaged connections. Plug the AC back in, switch it on, and see if the P4 error code has already cleared from the system. If it is still displaying, then it’s time to seek professional assistance.
Silverback Aircon maintains a collection of refurbished Midea aircon spare parts, in case the P4 fault on your AC unit is found to be due to failing parts that need to be replaced. The table below offers a breakdown of the initial pricing costs of replacing specific defective parts.
If a defective outdoor PCB is discovered to be the root cause of the persistent P4 error, Silverback Aircon will go the extra mile and replace the whole circuit box containing the PCBs in the outdoor sub-unit. If the model of your Midea condenser unit is M30A21CDN1QC4, then your outdoor unit has three PCBs–the control board, power board, and noise filter. For the condenser unit model MS9A109CRDN1QC4, however, only two PCBs–control board and power board–are used. All in all, Silverback Aircon will put in a new set of PCBs in a circuit box, if one of them is found to be damaged.
Meanwhile, a compressor malfunction as a cause of the lingering Midea aircon P4 error code would mean a thorough and professional replacement of your condenser unit because Silverback Aircon’s long-standing practice involves simply replacing the entire condenser that contains the compressor unit.
A Midea aircon P4 error code, indicating a malfunction detected in any one (or a combination) of the interconnected parts of the outdoor sub-unit, might be caused by a defect in the outdoor PCB, wiring system, outdoor fan assembly, or compressor. If the error fails to clear after routine troubleshooting, talk to aircon specialists at Silverback Aircon. We offer free consultation over Whatsapp and will give you an honest quote on the cost of repair and possible parts replacement for the complex P4 error on your Midea air conditioning unit. For us to quickly assist you, kindly note the model number of the indoor unit (refer to the sticker attached to the indoor unit) as well as the outdoor unit (refer to the invoice) before you call us.
