--- title: "True Residential refrigerator showing Communication Error" description: "What Communication Error means on True Residential refrigerators, what to check before booking, and when it is not a failure at all." url: "https://refrigeratorrepair.center/error-codes/true-communication-error/" --- # True Residential refrigerator showing Communication Error When the main screen reads Communication Error and call for service, the electronic control is reporting a communication error. ## What Communication Error actually means. When the main screen reads Communication Error and call for service, the electronic control is reporting a communication error. True does not list an owner fix. The message itself tells you to call for service. True Residential refrigerator display · also shown as Communication Error call for service What to do when Communication Error shows on the refrigerator ### Kind of code Communication Two boards that stopped hearing each other — the main control and the display, or the inverter. A harness is checked before a board. ### Usually leads to Controls and sensors A refrigerator cools to what it believes the temperature is, and a sensor reading wrong is obeyed perfectly. ### Shows up as Refrigerator Control Panel Not Responding Buttons do nothing, the display is blank or frozen, or settings will not hold. ### Make True Residential Commercial-derived residential refrigeration: columns, undercounter units and glass-door cabinets. ### Source True Residential TR-42 / TR-48 Install Manual, Rev. C, electronic control operation (true-residential.com PDF) True Residential TR-42 and TR-48 column models with the electronic control described in the Rev. C manual. ## Before you book, in this order. Each step comes from True Residential's own guidance for Communication Error on its refrigerators. Follow it to the end: the last card says whether this is a visit. 01 Note the exact message and the model number. 02 Check whether the unit is still holding temperature. 03 Call True for service. ### Still there? It usually turns into [controls and sensors](https://refrigeratorrepair.center/services/controls-and-sensors/). Book with the code and the model number. ### What not to do It is not showroom mode or a door alert. Those have their own icons on the same screen. ## What you may notice with it. The refrigerator problem Communication Error tends to arrive with. Answer these at the refrigerator before anyone is booked. [All problems](https://refrigeratorrepair.center/problems/) Before you call ### [Refrigerator Control Panel Not Responding](https://refrigeratorrepair.center/problems/control-panel-not-responding/) [All 5 causes, cheapest first](https://refrigeratorrepair.center/problems/control-panel-not-responding/) Problem ### Refrigerator Control Panel Not Responding 5 causes, cheapest first Where Communication Error usually leads ## Controls and sensors. **Control board · moderate.** Book a visit [What the job involves](https://refrigeratorrepair.center/services/controls-and-sensors/) ## Read these before the visit. Short guides that make the call quicker and the diagnosis cheaper. [All guides](https://refrigeratorrepair.center/guides/) What you can check yourself ### Five observations that narrow a refrigerator problem down before anyone visits What you can check yourself ### Where the model number hides, and why nothing works without it Error codes ### All 247 codes, by make ## True Residential refrigerators. Commercial-derived residential refrigeration: columns, undercounter units and glass-door cabinets. [True Residential refrigerator repair](https://refrigeratorrepair.center/brands/true/) More True Residential codes [REF](https://refrigeratorrepair.center/error-codes/true-ref/) [High temperature alarm](https://refrigeratorrepair.center/error-codes/true-high-temperature-alarm/) [Showroom Mode](https://refrigeratorrepair.center/error-codes/true-showroom-mode/) [Door ajar alarm](https://refrigeratorrepair.center/error-codes/true-door-ajar-alarm/) Communication on other makes [Samsung PC ER](https://refrigeratorrepair.center/error-codes/samsung-pc-er/) [LG ER CO](https://refrigeratorrepair.center/error-codes/lg-er-co/) [Frigidaire SY CE](https://refrigeratorrepair.center/error-codes/frigidaire-sy-ce/) [Electrolux SY CE](https://refrigeratorrepair.center/error-codes/electrolux-sy-ce/) [Bosch E02](https://refrigeratorrepair.center/error-codes/bosch-e02/) [U-Line No Comm](https://refrigeratorrepair.center/error-codes/u-line-no-comm/) [Bertazzoni E6](https://refrigeratorrepair.center/error-codes/bertazzoni-e6/) [ASKO E0](https://refrigeratorrepair.center/error-codes/asko-e0-r31442i/) [All 20 codes of this kind](https://refrigeratorrepair.center/error-codes/#family-communication) True Residential builds this ### Built-in refrigerator Flush with the cabinets, serviced from the front, and almost always repaired rather than replaced. True Residential builds this ### Refrigerator column Separate refrigerator and freezer towers, each with its own sealed system — so a failure stays on one side. True Residential builds this ### Undercounter refrigerator A single 15 to 24 inch unit under the worktop — front-vented, tightly enclosed, and easily starved of air. ## In True Residential's own words > MAIN SCREEN COULD SHOW THE FOLLOWING COMMUNICATION ERROR: Communication Error call for service [True Residential TR-42 / TR-48 Install Manual, Rev. C, electronic control operation (true-residential.com PDF)](https://true-residential.com/wp-content/uploads/2020/01/848062-TR-42-48-C-Install-Manual_REV_C_EN.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. True Residential TR-42 and TR-48 column models with the electronic control described in the Rev. C manual. ## True Residential Communication Error refrigerator 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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Note the exact message and the model number. If it comes back, it needs a visit. ### Is there anything I can try for Communication Error on my True column? True lists no owner remedy, and the message itself says to call for service. Note the wording and model number. Checking whether the unit still holds temperature tells you how urgent it is. ### Is Communication Error on a True the same as showroom mode? No, showroom mode and the door alert have their own icons on the same screen. Communication Error reports a problem within the electronic control. It applies to TR-42 and TR-48 columns built around the electronic control from the revision C manual. --- **[Read on the site: True Residential refrigerator showing Communication Error](https://refrigeratorrepair.center/error-codes/true-communication-error/)** **[Book a visit with RefrigeratorRepair.center](https://refrigeratorrepair.center/schedule/)**