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A row of front-load commercial laundry machines in an on-premise laundry, their round glass doors closed and drums empty, a folding table and a stack of clean white towels beside them, nobody at the machines.

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.

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Mon–Sat, 8am–8pm

  • Motors and drives
  • Commercial laundry machine repair
  • Source: Middleby Marshall

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or call (844) 571-4566

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 codeMotors 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 toCommercial laundry machine repair

Coin, card and on-premise laundry machines and tumblers: door locks, bearings, inverters, burners and payment hardware.

Shows up asCommercial 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.

MakeMiddleby 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.

SourceMiddleby 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. 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

Before you call

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

All 8 causes, cheapest first

It also comes with

Close view of the dark touch control panel on the front of a stainless combi oven in a commercial kitchen, one abstract amber warning indicator glowing among unlit icons, the steam-fogged glass door blurred beside it. 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

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

More Middleby Marshall codes

IO_COMM_LOSTMC1_COMM_LOSTMC2_COMM_LOSTPROBE_TL_FAULTFAN LOW CURRENTMC1_HIGH_CURRENTLIMIT BOARD HIGH TEMPLIMIT BOARD PROBE FAULTIO BOARD HIGH TEMPCONTROL COMPARTMENT HIGH TEMPHIGH TEMP CHECK FANSFAN FAULT
All 14 Middleby Marshall codes

Motors and drives on other makes

Alto-Shaam E03Blodgett Fan ErrorDexter F9Frymaster E25Garland E03Hatco Fan Is StoppedMiele Professional F78Rational Service 47.1
All 22 codes of this kind
A working restaurant cooking line under a stainless ventilation hood, two stainless gas fryers with baskets hanging above the oil, a flat griddle and a combi oven with a glass door beside them, the equipment clearly the subject, a cook seen only from behind and shoulders down at the far end of the line, warm kitchen light, small blue flames visible under the griddle. 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) Middleby Marshall CTX DZ26T, DZ33T and DZ55T infrared conveyor oven owner's operating and installation manual (Rev G) Middleby Marshall CTX DZ26T, DZ33T and DZ55T infrared conveyor oven owner's operating and installation manual (Rev G)

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.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A restaurant team working a busy commercial kitchen line.
For the heart of your home.

Questions
about FAN_HIGH_CURRENT.

Can I clear FAN_HIGH_CURRENT myself?
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.

Back to your everyday

Still showing FAN_HIGH_CURRENT?

A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.

Schedule a repair Call (844) 571-4566
(844) 571-4566 Schedule a repair