Dave F Wichita , KS October 25, 2015 Appliance: Model BOSCH HBN5450UC/05 Electronic timer was not keeping correct time on my bosch in wall oven Ordered a replacement control panel from Appliance Parts Pros after confirming my preliminary diagnosis with the sales representative. Removed the existing control panel and replaced it with the new board. Oven is keeping accurate time now.....problem fixed! Great friendly knowledgeable service and quick delivery. Very pleased with the transaction. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes