--- title: "Samsung wall oven showing tESt | OvenRepair.center" description: "What tESt means on Samsung wall ovens, what to check before booking, and when it is not a failure at all." url: "https://ovenrepair.center/error-codes/samsung-test/" --- # Samsung wall oven showing tESt tESt, sometimes shown as tE5t, means the appliance is in Demo mode. ## What tESt actually means. tESt, sometimes shown as tE5t, means the appliance is in Demo mode. Samsung notes the oven will not heat while it is on. Samsung oven display · also shown as tE5t What to do when tESt shows on the oven ### Kind of code Mode, not a failure A setting someone switched on, or a state the oven entered on purpose — a control lock, a Sabbath setting, a showroom mode that lights the display without heating. No part has broken and nothing has to be replaced. ### Usually leads to No repair Find the Demo mode steps in your model's user manual. ### Shows up as Oven Not Heating The oven turns on and the display counts, but the cavity stays cold or only lukewarm after a long preheat. ### Make Samsung A Korean electronics group whose wall ovens include models with dual cooking zones and steam features. ### Source Samsung US support: Samsung range or wall oven error codes (read 24 Sep 2026) From Samsung's US page for range and wall oven codes, which sends owners to the user manual for the steps on each model. ## Before you book, in this order. Each step comes from Samsung's own guidance for tESt on its ovens. Follow it to the end: the last card says whether this is a visit. 01 Find the Demo mode steps in your model's user manual. 02 Turn Demo mode off as the manual describes. 03 Book a visit only if the oven still will not heat once Demo mode is off. ### Cleared? The oven came through without a new part. If the same message returns during a later bake, or the oven stops heating partway through, book it as a fresh problem. ### What not to do tESt is not a self-test result; nothing has been diagnosed or broken. ## What you may notice with it. The oven problems tESt tends to arrive with. Answer these at the oven before anyone is booked. [All problems](https://ovenrepair.center/problems/) Before you call ### [Oven Not Heating](https://ovenrepair.center/problems/oven-not-heating/) [All 6 causes, cheapest first](https://ovenrepair.center/problems/oven-not-heating/) It also comes with - [**Oven Error Code**](https://ovenrepair.center/problems/oven-error-code/) Problem ### Oven Not Heating 6 causes, cheapest first No repair indicated ## Nothing to repair. A setting someone switched on, or a state the oven entered on purpose — a control lock, a Sabbath setting, a showroom mode that lights the display without heating. No part has broken and nothing has to be replaced. [How to read what your oven is telling you](https://ovenrepair.center/problems/oven-error-code/) ## Samsung ovens. A Korean electronics group whose wall ovens include models with dual cooking zones and steam features. [Samsung oven repair](https://ovenrepair.center/brands/samsung/) More Samsung codes [C-d0](https://ovenrepair.center/error-codes/samsung-c-d0/) [C-d1](https://ovenrepair.center/error-codes/samsung-c-d1/) [C-F0](https://ovenrepair.center/error-codes/samsung-c-f0/) [C-20](https://ovenrepair.center/error-codes/samsung-c-20/) [C-21](https://ovenrepair.center/error-codes/samsung-c-21/) [-dC-](https://ovenrepair.center/error-codes/samsung-dc/) [C-70](https://ovenrepair.center/error-codes/samsung-c-70/) [C-72](https://ovenrepair.center/error-codes/samsung-c-72/) [C-A2](https://ovenrepair.center/error-codes/samsung-c-a2/) Mode, not a failure on other makes [Bertazzoni Showroom mode](https://ovenrepair.center/error-codes/bertazzoni-showroom-mode/) [Café LOC](https://ovenrepair.center/error-codes/cafe-loc/) [Electrolux DEMO MODE](https://ovenrepair.center/error-codes/electrolux-demo-mode/) [Frigidaire DEMO MODE](https://ovenrepair.center/error-codes/frigidaire-demo-mode/) [Fulgor Milano F15](https://ovenrepair.center/error-codes/fulgor-milano-f15/) [GE Profile ERR](https://ovenrepair.center/error-codes/ge-profile-err/) [ILVE DOOR OPEN](https://ovenrepair.center/error-codes/ilve-door-open/) [LG Loc](https://ovenrepair.center/error-codes/lg-loc/) [All 20 codes of this kind](https://ovenrepair.center/error-codes/#family-mode) Samsung builds this ### Single wall oven One oven cavity set into a cabinet at chest height, with its own controls above the door and nothing to cook on above it. Samsung builds this ### Double wall oven Two full oven cavities stacked in one tall cabinet, sharing one control panel and one power supply but heating on their own. ## In Samsung's own words > The range is in Demo mode. The oven and cooktop will not heat. [Samsung US support: Samsung range or wall oven error codes (read 24 Sep 2026)](https://www.samsung.com/us/support/troubleshoot/TSG10003529) [Samsung US support: Samsung range or wall oven error codes (read 24 Sep 2026)](https://www.samsung.com/us/support/troubleshoot/TSG10003529) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. From Samsung's US page for range and wall oven codes, which sends owners to the user manual for the steps on each model. ## Samsung tESt oven 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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Find the Demo mode steps in your model's user manual. ### Why is my new Samsung wall oven showing tESt? It is in Demo mode, which stores use for display. Turn it off with the steps in your manual. ### Does tESt mean my Samsung oven ran a diagnostic? No. Samsung ties tESt to Demo mode only. --- **[Read on the site: Samsung wall oven showing tESt | OvenRepair.center](https://ovenrepair.center/error-codes/samsung-test/)** **[Book a visit with OvenRepair.center](https://ovenrepair.center/schedule/)**