Whirlpool Microwave Error Code ERR 2

ERR 2 indicates a keyboard error, meaning the control board has detected an invalid or unrecognized signal from the keypad assembly. This can result from a stuck button, a damaged membrane keypad, a faulty ribbon cable connection, or in rarer cases a failed control board. The microwave will not function normally until the underlying cause is addressed.

A keypad error typically prevents normal operation, so in most cases the microwave will not run while ERR 2 is active. Even if the unit appears to respond to some inputs, operating it with a faulty keypad is not recommended because unintended commands could be sent to the control board. It is best to leave the unit unplugged until the fault is diagnosed and repaired.

Repair costs vary depending on the faulty component. A replacement membrane keypad typically runs in the range of $30 to $80 for parts, while a main control board can cost $100 to $200 or more. Adding professional labor, total repair costs generally fall between $80 and $300 depending on the component needed and your location. For older or lower-end models, it is worth comparing the repair cost against the price of a replacement unit.

Some causes of ERR 2 are accessible to experienced DIYers, such as reseating a loose ribbon cable or cleaning contamination from behind the control panel. However, replacing a membrane keypad or control board requires disassembling the control panel and working near high-voltage components, so this work is best approached with caution and proper safety precautions. If you are not comfortable working inside microwave enclosures, a qualified technician should perform the repair.

Unplugging the microwave for several minutes can sometimes clear a transient or one-time ERR 2 fault caused by a momentary signal issue. However, if the error returns after power is restored, the keypad membrane, ribbon cable, or control board has a physical problem that a reset cannot correct. Recurring ERR 2 codes require inspection and likely component replacement.