--- title: "Hatco Communication Error: the Toast-Qwik control needs a software check" description: "What Communication Error means on Hatco Communication Error: the Toast-Qwik control needs a software checks, what to check before booking, and when it is not a…" url: "https://commercialappliancerepair.center/error-codes/hatco-communication-error/" --- # Hatco Communication Error: the Toast-Qwik control needs a software check The touchscreen TQ3 runs firmware that can be updated from a USB drive. ## What Communication Error actually means. The touchscreen TQ3 runs firmware that can be updated from a USB drive. When its control parts lose communication, the screen shows Communication Error. Hatco's first step is to download current software from its website to a USB drive and follow the firmware update procedure in the manual; a new electronic control is the fallback. Hatco commercial appliance display · also shown as Communication Error What to do when Communication Error shows on the commercial appliance ### Kind of code Controls and power The controller itself is reporting trouble, or the supply behind it is: a display with dead segments, a keypad that stopped responding after steam or degreaser got behind it, relays that stick, stored recipes or cycles that vanished overnight, a blown control fuse, or one leg of a three-phase feed missing so half the heat or the pump is gone. A full power cycle at the breaker, done as the manual describes, clears a passing glitch; a code that returns, a scorched smell or any sign of moisture behind the panel means the breaker stays off, and that is a visit. ### Usually leads to Commercial controls and board repair Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so. ### 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 Hatco Hatco equipment is often checked in the gap between breakfast and lunch, when the station it serves can do without it for a short while. ### Source Hatco Toast-Qwik TQ3-400, TQ3-500, TQ3-900 and TQ3-2000 conveyor toaster installation and operating manual Toast-Qwik TQ3-400, TQ3-500, TQ3-900 and TQ3-2000 conveyor toasters with the touchscreen control. ## Before you book, in this order. Each step comes from Hatco's own guidance for Communication Error on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Switch the toaster off and on once. 02 If the message returns, load the current software from Hatco's website onto a USB drive and follow the Updating Firmware steps in the manual. 03 Still showing after the update? Book a visit for the electronic control. ### Still there? It usually turns into [commercial controls and board repair](https://commercialappliancerepair.center/services/commercial-controls-and-board-repair/). Book with the code and the model number. ### What not to do Communication Error is not about heat or the probe; the toaster may heat normally before it stops. It is different from Touch Panel Error, which concerns the screen surface. ## What you may notice with it. The commercial appliance problem Communication Error 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/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where Communication Error usually leads ## Commercial controls and board repair. **Controller, touch panel, probe or sensor, relay, contactor, power supply, door switch or interlock, tested before anything is changed · moderate.** Book a visit [What the job involves](https://commercialappliancerepair.center/services/commercial-controls-and-board-repair/) ## Hatco commercial appliances. Hatco equipment is often checked in the gap between breakfast and lunch, when the station it serves can do without it for a short while. [Hatco commercial appliance repair](https://commercialappliancerepair.center/brands/hatco/) More Hatco codes [E1](https://commercialappliancerepair.center/error-codes/hatco-e1/) [E2](https://commercialappliancerepair.center/error-codes/hatco-e2/) [LO H2O](https://commercialappliancerepair.center/error-codes/hatco-lo-h2o/) [Lo](https://commercialappliancerepair.center/error-codes/hatco-lo/) [Temperature Probe Error](https://commercialappliancerepair.center/error-codes/hatco-temperature-probe-error/) [Control Board Overtemp](https://commercialappliancerepair.center/error-codes/hatco-control-board-overtemp/) [Heating Error](https://commercialappliancerepair.center/error-codes/hatco-heating-error/) [Touch Panel Error](https://commercialappliancerepair.center/error-codes/hatco-touch-panel-error/) [Top Element Is Out](https://commercialappliancerepair.center/error-codes/hatco-top-element-is-out/) [Fan Is Stopped](https://commercialappliancerepair.center/error-codes/hatco-fan-is-stopped/) [Clean Fan Filters](https://commercialappliancerepair.center/error-codes/hatco-clean-fan-filters/) [Clean Right Product Sensor](https://commercialappliancerepair.center/error-codes/hatco-clean-right-product-sensor/) [All 15 Hatco codes](https://commercialappliancerepair.center/error-codes/#codes-hatco) Controls and power on other makes [Alto-Shaam E02](https://commercialappliancerepair.center/error-codes/alto-shaam-e02/) [Beverage-Air uLi](https://commercialappliancerepair.center/error-codes/beverage-air-uli/) [Blodgett Com Error](https://commercialappliancerepair.center/error-codes/blodgett-com-error/) [Delfield uLi](https://commercialappliancerepair.center/error-codes/delfield-uli/) [Dexter F1](https://commercialappliancerepair.center/error-codes/dexter-f1/) [Frymaster E19](https://commercialappliancerepair.center/error-codes/frymaster-e19/) [Garland E01](https://commercialappliancerepair.center/error-codes/garland-e01/) [Henny Penny E-4](https://commercialappliancerepair.center/error-codes/henny-penny-e-4/) [All 63 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-board) Hatco builds this ### Commercial cold storage Reach-in and pass-through cabinets, walk-in coolers and walk-in freezers, prep and sandwich tables, undercounter units and blast chillers that hold a kitchen's food at safe temperatures. Hatco 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. Hatco builds this ### Commercial dish machines Undercounter, door-type and conveyor dish machines with their booster heaters and chemical feeds, the warewashing station that washes and sanitizes every rack before it goes back on the line. ## In Hatco's own words > Update software—download from Hatco website to USB drive. [Hatco Toast-Qwik TQ3-400, TQ3-500, TQ3-900 and TQ3-2000 conveyor toaster installation and operating manual](https://www.hatcocorp.com/cms/IOMANUALS/000000025936977-00000-20170605.PDF) [Hatco Toast-Qwik TQ3-400, TQ3-500, TQ3-900 and TQ3-2000 conveyor toaster installation and operating manual](https://www.hatcocorp.com/cms/IOMANUALS/000000025936977-00000-20170605.PDF) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Toast-Qwik TQ3-400, TQ3-500, TQ3-900 and TQ3-2000 conveyor toasters with the touchscreen control. ## Hatco Communication Error 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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Switch the toaster off and on once. If it comes back, it needs a visit. ### Can I update a Hatco TQ3 myself? Yes. The manual describes loading software from Hatco's website on a USB drive and following the Updating Firmware steps. ### What if a firmware update does not fix Communication Error on my Hatco? Then the manual points to replacing the electronic control, which is a service visit. ### Does Communication Error affect toasting on a Hatco TQ3? It can stop the toaster or make settings unreliable. Do not rely on it for a rush until the message is gone. --- **[Read on the site: Hatco Communication Error: the Toast-Qwik control needs a software check](https://commercialappliancerepair.center/error-codes/hatco-communication-error/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**