--- title: "Middleby Marshall FAN_HIGH_CURRENT: the CTX cooling fan is drawing too much power" description: "What FAN_HIGH_CURRENT means on Middleby Marshall FAN_HIGH_CURRENT: the CTX cooling fan is drawing too much powers, what to check before booking, and when it is…" url: "https://commercialappliancerepair.center/error-codes/middleby-marshall-fan-high-current/" --- # Middleby Marshall FAN_HIGH_CURRENT: the CTX cooling fan is drawing too much power The CTX has no convection blower; its fan is a 24-volt DC cooling fan behind a front filter that moves air through the electrical raceway. ## What FAN_HIGH_CURRENT actually means. The CTX has no convection blower; its fan is a 24-volt DC cooling fan behind a front filter that moves air through the electrical raceway. The control watches the current that fan draws. A reading above the set limit for 5 seconds brings FAN_HIGH_CURRENT, which usually means the fan is straining against something or its motor is wearing out. Middleby Marshall commercial appliance display · also shown as FAN_HIGH_CURRENT What to do when FAN_HIGH_CURRENT shows on the commercial appliance ### Kind of code Motors and drives Something that should turn is not turning, or not at the speed the controller expects. A washer-extractor's drive or its inverter may stop the spin when the load is out of balance or a bearing drags, a tumbler's belt may slip so the drum barely moves, a convection or combi fan may slow on worn bearings and bake unevenly, and a dish machine's wash pump may hum without spraying. Redistributing a load, confirming the door is latched and running the machine's own test cycle are fair; a drum, a belt or a motor is a visit, and nobody reaches into a drum that could still move. ### Usually leads to Commercial laundry machine repair Coin, card and on-premise laundry machines and tumblers: door locks, bearings, inverters, burners and payment hardware. ### Shows up as Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone. ### Make Middleby Marshall Middleby Marshall ovens on this site are the kitchen's non-pizza baking and roasting work; pizza service calls belong to our pizza oven site. ### Source Middleby Marshall CTX DZ26T, DZ33T and DZ55T infrared conveyor oven owner's operating and installation manual (Rev G) CTX DZ26T, DZ33T and DZ55T infrared conveyor ovens with the touch screen (manual Rev G). The message shows only on the Manual Mode and Preset Mode main screens. ## Before you book, in this order. Each step comes from Middleby Marshall's own guidance for FAN_HIGH_CURRENT on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Acknowledge the message and listen for the fan behind the front filter: grinding, rattling or silence all matter. 02 With the oven off, lift off the magnetic fan filter and clean it as the weekly routine describes; shake out dust or wash off grease and let it dry. 03 Make sure nothing is pressed against the filter opening. 04 A repeat with a fresh filter means the fan is wearing out and the compartment may overheat; book a visit. ### Still there? It usually turns into [commercial laundry machine repair](https://commercialappliancerepair.center/services/commercial-laundry-machine-repair/). Book with the code and the model number. ### What not to do FAN_HIGH_CURRENT is about the electronics cooling fan, not about how the food cooks. It is the opposite of FAN LOW CURRENT, which points to a fan that is barely running or disconnected. ## What you may notice with it. The commercial appliance problems FAN_HIGH_CURRENT tends to arrive with. Answer these at the commercial appliance before anyone is booked. [All problems](https://commercialappliancerepair.center/problems/) Before you call ### [Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display](https://commercialappliancerepair.center/problems/commercial-error-code/) [All 8 causes, cheapest first](https://commercialappliancerepair.center/problems/commercial-error-code/) It also comes with - [**Restaurant Equipment Burning Smell: Scorched Oil, Hot Wiring or Lint**](https://commercialappliancerepair.center/problems/commercial-burning-smell/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where FAN_HIGH_CURRENT usually leads ## Commercial laundry machine repair. **Laundry machine door lock, belt, bearings and seal, drain valve, inverter or motor; tumbler igniter, flame sensor, gas valve coil or airflow switch · moderate.** Book a visit [What the job involves](https://commercialappliancerepair.center/services/commercial-laundry-machine-repair/) ## Middleby Marshall commercial appliances. Middleby Marshall ovens on this site are the kitchen's non-pizza baking and roasting work; pizza service calls belong to our pizza oven site. [Middleby Marshall commercial appliance repair](https://commercialappliancerepair.center/brands/middleby-marshall/) More Middleby Marshall codes [IO_COMM_LOST](https://commercialappliancerepair.center/error-codes/middleby-marshall-io-comm-lost/) [MC1_COMM_LOST](https://commercialappliancerepair.center/error-codes/middleby-marshall-mc1-comm-lost/) [MC2_COMM_LOST](https://commercialappliancerepair.center/error-codes/middleby-marshall-mc2-comm-lost/) [PROBE_TL_FAULT](https://commercialappliancerepair.center/error-codes/middleby-marshall-probe-tl-error/) [FAN LOW CURRENT](https://commercialappliancerepair.center/error-codes/middleby-marshall-fan-low-current/) [MC1_HIGH_CURRENT](https://commercialappliancerepair.center/error-codes/middleby-marshall-mc1-high-current/) [LIMIT BOARD HIGH TEMP](https://commercialappliancerepair.center/error-codes/middleby-marshall-limit-board-high-temp/) [LIMIT BOARD PROBE FAULT](https://commercialappliancerepair.center/error-codes/middleby-marshall-limit-board-probe-error/) [IO BOARD HIGH TEMP](https://commercialappliancerepair.center/error-codes/middleby-marshall-io-board-high-temp/) [CONTROL COMPARTMENT HIGH TEMP](https://commercialappliancerepair.center/error-codes/middleby-marshall-control-compartment-high-temp/) [HIGH TEMP CHECK FANS](https://commercialappliancerepair.center/error-codes/middleby-marshall-high-temp-check-fans/) [FAN FAULT](https://commercialappliancerepair.center/error-codes/middleby-marshall-fan-error/) [All 14 Middleby Marshall codes](https://commercialappliancerepair.center/error-codes/#codes-middleby-marshall) Motors and drives on other makes [Alto-Shaam E03](https://commercialappliancerepair.center/error-codes/alto-shaam-e03/) [Blodgett Fan Error](https://commercialappliancerepair.center/error-codes/blodgett-fan-error/) [Dexter F9](https://commercialappliancerepair.center/error-codes/dexter-f9/) [Frymaster E25](https://commercialappliancerepair.center/error-codes/frymaster-e25/) [Garland E03](https://commercialappliancerepair.center/error-codes/garland-e03/) [Hatco Fan Is Stopped](https://commercialappliancerepair.center/error-codes/hatco-fan-is-stopped/) [Miele Professional F78](https://commercialappliancerepair.center/error-codes/miele-professional-f78/) [Rational Service 47.1](https://commercialappliancerepair.center/error-codes/rational-service-47-1/) [All 22 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-motor) Middleby Marshall builds this ### Commercial cooking equipment Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line. ## In Middleby Marshall's own words > The fan current has exceeded the set limit for more than 5 seconds. [Middleby Marshall CTX DZ26T, DZ33T and DZ55T infrared conveyor oven owner's operating and installation manual (Rev G)](https://www.middlebymarshall.com/wp-content/uploads/2022/01/CTX-DZ26T-DZ33T-DZ55T-Series-Electric-Oven-Rev-G.pdf) [Middleby Marshall CTX DZ26T, DZ33T and DZ55T infrared conveyor oven owner's operating and installation manual (Rev G)](https://www.middlebymarshall.com/wp-content/uploads/2022/01/CTX-DZ26T-DZ33T-DZ55T-Series-Electric-Oven-Rev-G.pdf) [Middleby Marshall CTX DZ26T, DZ33T and DZ55T infrared conveyor oven owner's operating and installation manual (Rev G)](https://www.middlebymarshall.com/wp-content/uploads/2022/01/CTX-DZ26T-DZ33T-DZ55T-Series-Electric-Oven-Rev-G.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. CTX DZ26T, DZ33T and DZ55T infrared conveyor ovens with the touch screen (manual Rev G). The message shows only on the Manual Mode and Preset Mode main screens. ## Middleby Marshall FAN_HIGH_CURRENT commercial appliance repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Acknowledge the message and listen for the fan behind the front filter: grinding, rattling or silence all matter. If it comes back, it needs a visit. ### Can a greasy filter cause FAN_HIGH_CURRENT on a CTX? It can add load and heat to the fan. The manual asks for a weekly filter clean, with dish soap if it is greasy. ### Is it safe to run a CTX with FAN_HIGH_CURRENT showing? Briefly, while you check the filter. A laboring fan leaves the electronics short of air, so a repeat of the message calls for service. ### Where is the cooling fan on a Middleby Marshall CTX? Directly behind the magnetic filter on the front panel. The manual describes air drawn through that filter and pushed through the whole electrical raceway. --- **[Read on the site: Middleby Marshall FAN_HIGH_CURRENT: the CTX cooling fan is drawing too much power](https://commercialappliancerepair.center/error-codes/middleby-marshall-fan-high-current/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**