Convection Oven Care

We live in a world of multi-functional equipment, designed to make our lives more efficient, but sometimes the simple approach is still the best. And so it is with standard convection ovens. Although there are other ovens that cook as well as do so much more, many kitchen operations only need a reliable convection oven that produces consistent results.

Convection ovens are simple to operate and maintain. Although there are slight differences in the design and construction from one model to the next, their function remains essentially the same: to bake, broil and roast product. As with any piece of equipment, the better you care for and maintain it, the longer it lasts.

Keeping It Simple

Care for convection ovens begins with a clear understanding of how to operate it. Manufacturers provide operator’s manuals in hard copy form or digital form available on their websites. Take the time to read and understand this valuable document. Donny Smith, Service Manager for Commercial Parts & Service, Columbus, Ohio, says many unwarranted service calls could be avoided just by knowing the contents of this manual. For example, operators call to complain that the oven will not heat when in reality, they’ve left the cook/cool-down switch in the cool-down position.

Manufacturers make convection ovens as maintenance-free as possible. They design and build them with such features as sealed cavities to make sure water, grease and vapors don’t make contact with internal components and controls; interior and exterior composites and materials that make it hard for product or other substances to stick; and parts that are accessible and removable so that employees can clean them separately and reinstall with ease.

To make the process more efficient, one company recently developed an oven with removable glass-windowed doors that you lift off the hinges and can run through a dishmachine. Another company uses a flat-panel design for outer oven doors so that food particles cannot get lodged or stuck in the seams where the glass meets the stainless. At least one company has coved corners on the interior oven cavity to avoid particles getting stuck. Manufacturers have done their part to simplify the process, it’s up to you and your staff to regularly maintain the unit.

Regular Cleaning

There are a few steps you can take to keep the oven in peak condition.

Always consider safety first. Start by turning off the power switch and unplugging the electrical cord or turning off the breaker on electric units. On gas units, turn off the gas supply valve and disconnect the oven from power.

  • Let the oven cool down to a safe temperature; it should be cool to the touch.
  • Remove all pans, racks and crumb or drip trays and clean them separately.
  • Wipe down the exterior of the oven with a non-abrasive mild detergent and water solution; be mindful of all exterior parts, sides, top, front, doors, etc.
  • Never use a pressure sprayer or pressure washer to clean the oven; this could damage components and delicate controls.
  • If accessible and only after disconnecting power, carefully remove debris (for example, aluminum foil or food pieces, such as bone) from fan blades or housing. Check to see if the fan moves freely without obstruction or heavy resistance.
  • Wipe down and remove any grease or debris from the oven’s interior. To remove sticking contaminants, use a nylon-head brush. Don’t use a wire brush or harsh solvents.
  • Clean the air intake vent (usually located on the rear of the oven). This may have a cover on it that you can remove.

Ongoing Maintenance

Clean your convection oven daily and it should run hassle-free for a long time. Even so, it’s smart to hire a qualified service company to annually inspect your oven and perform planned maintenance if needed. Don’t attempt to repair or adjust technical components of the oven; leave it to a qualified technician—for safety and the warranty’s sake. A simple call to the factory technical support line can assist you in identifying what’s acceptable and safe for you to attempt in the way of maintenance and repair.


According to techs we spoke to, most service calls on convection ovens are a result of abuse, either from misuse, an incorrect installation or a lack of proper cleaning and care. More than 60% of warranty service calls are a direct result of improper installation and set-up, says John Schwindt, V.P. Operations/G.M. of Hawkins Commercial Appliance Service, Englewood, Colo. Make sure to hire a qualified technician to do the install. On the small percentage of service calls resulting in faulty components, many manufacturers are aiding service technicians with built-in diagnostic technology.

Simple and reliable, convection ovens play a key role in many kitchens. Caring for the oven and keeping it properly maintained will provide you with years of trouble-free operation and profitability

As originally printed in FER Magazine

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