Last Updated on 15 July 2025 by Maelle
The fryer is one of the most important tools in a commercial kitchen. Problems with the fryer can slow down food preparation and cost you money, especially if fried foods are a major source of revenue for your establishment.
If your fryer isn’t performing optimally or isn’t working at all, you may be wondering what the problem is. That’s why tout-reparer.fr offers you its guide: How to repair an electric fryer? Here are the common problems affecting commercial fryers.
Broken thermopile
The thermopile is the fryer’s heating element. This device converts thermal heat into electrical energy, which heats the fryer’s oil. Busy commercial kitchens heat large quantities of oil for extended periods of time, which can have a negative impact on the thermopile. The thermopile is part of the pilot light. The pilot light is a small gas flame that helps light a gas burner. A worn thermopile will be unable to convert the pilot’s heat into electrical energy, and therefore, the frying oil will not heat.The most common sign of a broken thermopile is a pilot light that either won’t light or won’t stay lit. A qualified technician can replace a worn thermopile and address other potential pilot light issues.
Blocked Burners Grease buildup, food particles, dust, and debris can clog burner ports. Burners that don’t light at all, or those that light only partially or erratically, may have clogged ports. To unclog clogged burners, use a stiff brush on the burners to remove any particles or debris that may be blocking the ports. If the burners still produce fluctuating flames after brushing them, the problem could be low or uneven gas pressure. If the fuel supply is adequate, damaged fuel lines could be the reason why the fryer burners aren’t lighting.
Do not attempt to repair the fuel lines yourself. Have your technician assess your fryer for potential fuel supply line issues.
Faulty Thermostat
The thermostat regulates the temperature of the frying oil. Just as the heating element provides the necessary heat to the fryer basket, the thermostat monitors this heat transfer and stops the process when the oil reaches a certain temperature. This mechanism ensures that the oil remains at the set temperature based on the food you are preparing. A faulty thermostat allows the oil to overheat, resulting in overly crispy food. Furthermore, the oil may not reach the desired temperature, resulting in oily or soggy food.
Thermostat faults can be caused by improper calibration or disconnected wires. You can fix these problems by simply reconnecting the wire or resetting the thermostat. If the problem persists, the thermostat may need to be replaced. Have a qualified technician install a new thermostat for your fryer.
High Limit Switch Malfunction
In addition to a faulty thermostat, a faulty high limit switch could also prevent the frying oil from heating to the desired temperature.
The high-temperature limit switch monitors the fryer temperature and transmits this information to the thermostat, which then turns the heating element on or off based on the set temperature limits.
A faulty high-temperature limit switch won’t detect when the fryer temperature exceeds the set limit, and this information won’t be available to the thermostat, which regulates fryer temperatures. Replacing a faulty high-temperature limit switch should resolve the problem.
Preventative maintenance can extend the life of your fryer and reduce costly downtime. While some fryer repairs can be simple, consider entrusting major repairs and replacements to a reputable technician. Whether you’re looking to repair your fryer or need a preventative maintenance plan for your restaurant equipment, you can trust the experts at Golden State Equipment Repair. Call us today to discuss your needs. Deep Fryer: Won’t Turn OnIs your deep fryer not turning on? Check the power cord and control assembly for signs of wear. Save yourself the hassle and fix it yourself; we’re here to help you with the DIY repair process. Read our troubleshooting guide for tips on how to get your deep fryer working properly again. Refer to your owner’s manual if you need more specific instructions for your model.
Power Cords
The most likely reason your fryer won’t turn on is a problem with the power cord. Most fryer power cords connect to the appliance magnetically and can easily become disconnected if the fryer is bumped or moved. Make sure your power cord is properly connected before assuming it’s faulty. The cord may be faulty because the internal wires are damaged, or the cord contacts are worn or dirty, causing a poor connection to the fryer. Replacing your fryer’s power cord is as simple as ordering a new one that’s compatible with your model, without the need to disassemble it.
Assemblies
Your fryer may not turn on due to a problem with the control assembly, which houses the thermostats, control board, and heating element. These elements heat the fryer, so if one of them is faulty, the appliance will not turn on. Generally, the control assembly can be removed from the fryer as a single piece, and the continuity of the various parts can be tested using a multimeter. Consult your manual for the correct reading. If one of these parts fails, the entire control assembly usually needs to be replaced. Why do fryer parts stop working?Sometimes, appliances receive defective parts, and the fault is not detected until the appliance is sold. If possible, make sure you have completed a warranty registration form for all your household appliances. In most cases, regular wear and tear causes them to stop working.
Regular maintenance can slow down wear and extend the life of your fryer. Having your fryer parts repaired by DIYers can help you save money and gain invaluable experience that you can apply to other DIY projects. The entire tout-reparer.fr team remains at your disposal in the blog’s comments section.
