An E8 error code, displayed on the user interface (as well as the main PCB) of your Midea cassette air conditioning unit, typically indicates a fault in the power phase protector and associated wiring system. The possible causes of the E8 error are varied. They may include power supply phases that are not connected in their correct sequence, power supply terminals (or contact points) and power phase protector wires that are loose or severed, an abnormal power supply, a malfunctioning main PCB, and a defect in the power phase protector.
Routine troubleshooting sometimes manages to clear minor physical or electrical faults that might be behind a Midea cassette aircon E8 error code. To do this, turn off your air conditioning unit, unplug it from the power outlet, and then check the outdoor sub-unit, especially the internal wiring system and the mainboard terminals. If you are able to access the internal parts of the outdoor unit, then clean them as much as you can, paying attention to any loose or cut connections in the wiring system. Inspect the wiring attachments to the mainboard terminals, as well. There should also be no dirt or damage on the PCB terminals. Once you’ve tidied up and checked everything in the outdoor unit, plug the AC back in, turn it on, and check if the E8 error code is still displaying. If it has not been cleared from the system yet, then get in touch with service professionals who will promptly fix your faulty air conditioning unit which you’ve hopefully run through NEA’s Life Cycle Cost Calculator before purchasing.
Fixing an E8 error in your Midea cassette aircon might require replacement of a malfunctioning PCB and its associated wiring connection. You can always rely on Silverback Aircon to have a matching spare part to replace any damaged or defective part in your Midea cassette aircon. Silverback Aircon maintains a collection of refurbished Midea aircon spare parts.
If a defect in the outdoor PCB is causing the lingering E8 error code, Silverback Aircon will replace the whole circuit box containing the PCBs in the outdoor sub-unit of your Midea cassette aircon. If the model of your Midea condenser unit is M30A21CDN1QC4, then its outdoor unit has three PCBs–the control board, power board, and noise filter. For the condenser unit model MS9A109CRDN1QC4, only two outdoor PCBs–control board and power board–are used. To clear the E8 error caused by a defective PCB, Silverback Aircon will install the complete circuit box containing the set of PCBs corresponding to the model of your condenser unit. The following table gives the summary of replacement costs for a failing PCB behind a Midea cassette aircon E8 error code.
Aside from offering comprehensive aircon servicing options, Silverback Aircon also provides free consultation over Whatsapp for Midea cassette aircon users who can’t clear an E8 error code–indicating a fault related to the wiring, wiring terminals, or power supply of the outdoor unit–through routine troubleshooting. And before you contact us through Whatsapp, please note down the model number of the indoor AC unit (refer to the sticker attached to the indoor unit) as well as the outdoor unit (refer to the invoice). We will need the information for calculating a quote on the possible cost of repair and parts replacement, as well as to better guide you to the best course of action to take in fully resolving the E8 error on your Midea cassette aircon.
