Mitsubishi Air Conditioner: Abnormal temperature display and no cooling during operation
Model: RF10WER
Fault Symptoms: The Mitsubishi RF10WER air conditioner shows abnormal temperature display and fails to cool while running.
Repair Process: During the operation of the RF10WER model air conditioner, there was an abnormal temperature display. Regardless of the actual room temperature, the screen continuously displayed 16 degrees. The service center applied for a replacement indoor display board using a dedicated application number, but the fault persisted. Then, the service center applied for a replacement indoor computer board, which was also replaced, yet the fault remained with the display still showing 16 degrees. Subsequently, Mitsubishi Air Conditioning headquarters specially sent a set of display boards and computer boards. After the service center replaced them, the fault was resolved. This indicates that there was an issue with compatibility between the previous display board and computer board.
Repair Measures: Replace with matching display board and computer board.
Summary: For some faults in Mitsubishi air conditioners, technical support can be sought from the local Mitsubishi technical manager.
Article Source: http://blog.sina.com.cn/sanlingkt.