If your Haier microwave display is not working, first check whether the microwave has power by testing the wall receptacle with another appliance and confirming the circuit breaker has not tripped. If the microwave has power but the screen is blank or the buttons are also unresponsive, a defective control module is the most likely cause and may need replacement. On models without a separate display board, the touchpad and control panel can cause the microwave display not working symptom. If only part of the digital display is dark or missing segments, the display board is more commonly at fault. A display that is completely out may be caused by either the main control board or display board, while a control board with power but no display may need replacement. Enter your Haier microwave model number to find the exact replacement control module, touchpad, main control board, or display board for your appliance. If diagnosis requires removing the outer cabinet, unplug the microwave first and use proper safety procedures. The high-voltage capacitor can store a lethal charge even after the microwave is unplugged and must be properly discharged before interior work. If you are not familiar with capacitor discharge procedures, have a qualified technician perform the repair.
01 - Haier Microwave Control Module
A malfunctioning display could be caused by a defective control module. Try pressing each of the buttons on the control panel. If none of the buttons are responding correctly, it is likely the control module is defective and will need to be replaced.
Enter model number to search for the required part specific to your product
If the display goes out partially, the display board is more commonly at fault. If the display isn’t working at all, either the main control board or the display board could be at fault.
If the display isn’t working at all, either the main control board or the display board could be at fault. If the display goes out partially, the display board is more commonly at fault.
Confirm the microwave is plugged in and there is power at the wall receptacle. You can plug another small appliance into the receptacle to confirm there is power. If there is no power, confirm the circuit breaker has not tripped.
Highly Likely
06 - Haier Microwave Control Board
Since the control board is a part of the digital display, a defective board could be responsible for a microwave display not working, if the control board has power to it but the display is not working replace the control board.