https://www.google.com/search?hl=en&as_q=lg+37lc2d+capacitors

PLEASE REMOVE THIS FROM SERVICE UNTIL IT"S REPAIRED.

Sorry but I no longer explain this plague. Google "BAD CAPS" to learn more.

Why unplug it? If you continue to use it after the symptom shows up, it can blow out boards and cost more than a new set to fix.
Bob