Abnormal Display on Electric Component Box/Control Panel — Indicates an electrical issue

What does Abnormal Display mean?

An unusual or incorrect display on the unit's electric component box or main control panel can signal an internal electrical issue, such as loose connections or the presence of deposited foreign matter.

• Loose electrical connections within the component box
• Excessive dust or foreign matter accumulated inside the electric box
• An internal circuit fault or component failure

Click steps to track your progress.

1. 1

   Turn off the power to the unit at the main circuit breaker and wait 30 seconds before turning it back on.

2. 2

   If safely accessible, visually inspect the electric component box for excessive dust accumulation and carefully clean with a brush.

3. 3

   Contact a qualified service technician to check internal connections and diagnose any circuit faults.

4. 4

   Do not attempt to open sealed electrical components or panels yourself.