If I see flames coming from my deep fryer, should I call a technician?

Fact: Grease and flames don’t mix.

Yes. A common reason commercial deep fryers ignite is due to grease build up. With the repeated splashing of oil from fryer baskets, a coating of grease can accumulate and harden on top of the exhaust stack. The residue might resemble a pumice brick instead of a grease buildup, and will become an excellent fuel source that’s easily ignitable. As with all equipment in your kitchen, keep your deep fryer clean and practice proper grease management.