This afternoon at 13:38 the box was sent to Bayley St in South Middleton Twp (241-01) for a reported electrical fire with extension. Engine 241 w/4 arrived on scene with normal conditions. Crew investigated and found an exhaust fan in the kitchen that was on fire and extended into the wall about a foot around it. The fire was extinguished and overhaul/ventilation was completed. 41 had 7 members on scene and was committed for a little over 30 mins / C241 (Kline) had command 2.