What was found
AIRCRAFT RETURNED TO GATE BECAUSE OF ELECTRICAL BURNING SMELL IN FRONT GALLEY AREA. RAN BOTH ENGS WITH BLEED AIR AND PACKS ON AND NO ODOR SMELL NO SMOKE PRESENCE. R/R RT RECIRC FAN FILTER. NOTED AS A PRECAUTION CHECKED CABIN PC POWER SYS OR ISSUES AS PER B737 AMM 23-81 NO ISSUES NOTED. REMOVED AND INSPECTED THE G1 OVEN AND FREEZER PER B737 AMM 25-31 NO ISSUES NOTED. R/R AS PRECAUTIONARY MEASURE, FWD GALLEY OVEN, FREEZER, AND #1 AND #2 COFFEE MAKERS.