On August 05, 2019 @ 09:48 hrs, Units were dispatched for a strong burning odor in a Commercial Building (Sheetz) at 11449 Kings HWY. AOS to find the store evacuated and nothing evident. BATT1 established command. E1 crew checked inside and RE2 crew checked the HVAC units on the roof. Spoke with the store manager- odor started over power fluctuation with odor strongest near the cash registers. All equipment working except ATM machine located by front door. ATM was unplugged and advised the store manager it was safe to reopen the store. She will contact the corporate office to have the ATM repaired. F/R units inservice.