--- title: "Viking undercounter unit error code E4" description: "Viking undercounter unit error code E4: the manufacturer publishes this for the display thermistor, sensor A, being out of range." url: "https://vikingmiami.support/error-codes/error-code-e4-undercounter-refrigeration/" date_modified: "2026-08-21" Product line: "Designer Series, Professional Custom" --- # Viking undercounter unit error code E4 Error code # Viking undercounter unit error code E4 Viking undercounter unit error code E4: the manufacturer publishes this for the display thermistor, sensor A, being out of range. What the code covers, what to check before you book, and why the same token means something else on another Viking machine. - **From $95** diagnostic, credited to the repair - **59** cities and neighborhoods covered - **OEM** parts available on order - **In writing** the price, before anything is opened ## Book a diagnostic visit Your model number and a line about what it is doing is enough to get started. Your details stay private. No spam, ever. What we can confirm ## Code E4, from the manufacturer’s own documentation A code is only meaningful together with the generation showing it — the same two digits mean different things across generations, and that is the commonest reason a code looked up online leads somewhere wrong. This one is recorded on [Designer Series](https://vikingmiami.support/series/designer-series/), [Professional Custom](https://vikingmiami.support/series/professional-custom/). The code The manufacturer publishes this for the display thermistor, sensor A, being out of range or call [(305) 697-3843](tel:+13056973843) What it narrows down to Display thermistor What you are probably seeing [Wine cellar temperature wrong or swinging](https://vikingmiami.support/symptoms/wine-cellar-temperature-wrong/) Diagnostic From $95, credited to the repair What it looks like from the kitchen ## The symptom this code usually arrives with A code names the subsystem; the symptom is what sent you to look at the display in the first place. That page says what it usually turns out to be, cheapest cause first. - On a two-zone cabinet, which zone matters Wine cellar temperature wrong or swinging One zone right and the other not, or a temperature that will not sit still. Stability matters more than the number here, and on a dual-zone cabinet the code means something different from what it means anywhere else on this make. One zone correct, the other several degrees out A temperature that swings through the day A display flashing an E-number [ What it usually means ](https://vikingmiami.support/symptoms/wine-cellar-temperature-wrong/) On a two-zone cabinet, which zone matters One zone right and the other not, or a temperature that will not sit still. Stability matters more than the number here, and on a dual-zone cabinet the code means something different from what it means anywhere else on this make. - One zone correct, the other several degrees out - A temperature that swings through the day - A display flashing an E-number On the same generation ## What else belongs to the Designer Series A code belongs to a generation rather than to one cabinet. These are the other codes yours can show, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right. Other codes this generation can display Key error Temperature sensor Over temperature Relay error Control error Software error Keyboard, ambient light LED test error Keyboard error Communication error The same two digits mean different things across generations. [ Search the full code list ](https://vikingmiami.support/error-codes/) Models that can display this code - [ VIRT5364 ](https://vikingmiami.support/models/viking-virt5364/) - [ VDOE130 ](https://vikingmiami.support/models/viking-vdoe130/) - [ DETU260 ](https://vikingmiami.support/models/viking-detu260/) - [ VICU105 ](https://vikingmiami.support/models/viking-vicu105/) - [ DURD1441D ](https://vikingmiami.support/models/viking-durd1441d/) - [ DUWC1541C ](https://vikingmiami.support/models/viking-duwc1541c/) - [ FRCI1240G ](https://vikingmiami.support/models/viking-frci1240g/) - [ VCSO244 ](https://vikingmiami.support/models/viking-vcso244/) - [ VCSB5484 ](https://vikingmiami.support/models/viking-vcsb5484/) The number on the data plate decides which parts exist and how quickly they arrive. [ All models ](https://vikingmiami.support/models/) In more detail ## About Viking undercounter unit error code E4 ### What Viking publishes for it On a Viking undercounter unit, the manufacturer publishes this for the display thermistor, sensor A, being out of range. That sentence is Viking’s own, read out of the code table in its Use and Care manual for this equipment rather than worked out from the outside. Everything below it — what the condition covers and what is worth doing first — is ours, written from what this equipment does in Miami kitchens. ### Which alphabet this belongs to The undercounter units run a microprocessor that watches the compressor current and both thermistors, and flashes an E-number at you when one of them leaves its range. Four numbers cover the whole family, and on a two-zone wine cellar two of them mean something different from what they mean on a single-zone drawer. ### What it covers What a published cause names is a circuit rather than a component, which is the single most useful thing to know before anybody orders a part. This one covers: - The thermistor the display reads, open or shorted - Its wiring - On a two-zone wine cellar this number is published against the lower compartment sensor ### Worth trying yourself, in this order - Clear it once — hold SET and press ON/OFF four times - Note what temperature the display was showing when it appeared ### Then what A sensor reading out of range is one of the more honest things an appliance can say: it names a circuit rather than a symptom. The part is usually inexpensive; the labor is in reaching it. Have the model number ready when you call, because on this make the same sensor sits in three different places depending on the series. Viking publishes this one for the undercounter refrigerators, refrigerated drawers and wine cellars — that is built-in refrigeration and wine cellars on this site. The [full Viking archive](https://vikingmiami.support/error-codes/) has the other conditions, searchable, and it is worth knowing that the same token can mean two different things on two different Viking machines, so the group above is part of the answer. We repair this equipment across Miami-Dade, Broward and Palm Beach. This article is based on: - Official manufacturer documentation - Internal repair procedures - Technician repair history - Company quality standards ## Tell us the model number and what it is doing. --- **[Read full article: Viking undercounter unit error code E4](https://vikingmiami.support/error-codes/error-code-e4-undercounter-refrigeration/)**