LG · Microwave
PO
Power interruption notice (not a fault)
What causes it
The microwave lost and regained power — a brief outage, breaker trip, or loose outlet connection, not a broken part.
What to check before calling
- ✓Press Clear/Stop to dismiss it and confirm the microwave still runs a normal cycle.
- ✓Check that the cord is fully seated in the outlet — if PO keeps coming back with steady household power, the microwave's internal power supply likely needs testing.
What happens when you call us
If those checks don't clear the PO code, it's usually a sign of a failed part rather than something to keep resetting. A technician runs a full diagnostic on your microwave, confirms the cause, and quotes the repair before any work starts. The $89 service call is waived if you go ahead with the repair, and parts and labor are covered by our 90-day warranty on parts & labor.
Still showing PO?
Same-day diagnosis and repair across Las Vegas, Henderson, and Summerlin. $89 service call, waived with repair.
Other Microwave Error Codes
Not seeing PO, or want to compare it against a different code on the display? Here's what these other common microwave codes mean.