--- title: "Hestan smart rangetop showing ER05 | CooktopRepair.center" description: "What ER05 means on Hestan smart rangetops, what to check before booking, and when it is not a failure at all." url: "https://cooktoprepair.center/error-codes/hestan-er05/" --- # Hestan smart rangetop showing ER05 ER05 on a Hestan Smart Burner means the burner could not be lit after several re-ignition attempts, so the cooking cycle ended. ## What ER05 actually means. ER05 on a Hestan Smart Burner means the burner could not be lit after several re-ignition attempts, so the cooking cycle ended. Hestan names dirty or blocked burner ports and a faulty igniter as causes. Hestan cooktop display What to do when ER05 shows on the cooktop ### Kind of code Burners and ignition A burner was turned to light and the cooktop never sensed a flame, or the spark carried on after the flame caught. A damp or greasy electrode and a cap resting off its base are ruled out before the spark module, a knob switch or the valve is changed. Gas in the air matters more than any code: leave the house and call the gas utility once outside. ### Usually leads to Burner and igniter repair Gas cooktop and rangetop burners that will not light, light late or burn with a ragged flame, traced to the electrode, the burner head, the cap or the ports. ### Shows up as Cooktop Burner Won't Light The igniter clicks but the gas never catches, the burner lights only after several tries, or nothing happens at all when the knob is turned. ### Make Hestan A California maker of pro-style gas cooking, with rangetops for the home kitchen. ### Source Hestan KRT and KRTS rangetop use and care manual, Smart Burner error codes Hestan KRTS smart rangetop, Smart Burner only; the KRTS is not in Hestan's 2026 indoor catalog. KRT rangetops without the Smart Burner show no ER codes. ## Before you book, in this order. Each step comes from Hestan's own guidance for ER05 on its cooktops. Follow it to the end: the last card says whether this is a visit. 01 Turn the burner off and let it cool. 02 Clean the burner ports and the igniter. 03 Try again; if ER05 repeats, book a visit for the igniter. ### Still there? It usually turns into [burner and igniter repair](https://cooktoprepair.center/services/burner-and-igniter-repair/). Book with the code and the model number. ### What not to do ER05 is not a pan or Bluetooth problem. It means the burner could not be lit after several re-ignition attempts. ## What you may notice with it. The cooktop problems ER05 tends to arrive with. Answer these at the cooktop before anyone is booked. [All problems](https://cooktoprepair.center/problems/) Before you call ### [Cooktop Burner Won't Light](https://cooktoprepair.center/problems/burner-wont-light/) [All 6 causes, cheapest first](https://cooktoprepair.center/problems/burner-wont-light/) It also comes with - [**Cooktop Igniter Keeps Clicking**](https://cooktoprepair.center/problems/igniter-keeps-clicking/) - [**Cooktop Error Code**](https://cooktoprepair.center/problems/cooktop-error-code/) Problem ### Cooktop Burner Won't Light 6 causes, cheapest first Where ER05 usually leads ## Burner and igniter repair. **Burner head, cap or electrode · low.** Book a visit [What the job involves](https://cooktoprepair.center/services/burner-and-igniter-repair/) ## Hestan cooktops. A California maker of pro-style gas cooking, with rangetops for the home kitchen. [Hestan cooktop repair](https://cooktoprepair.center/brands/hestan/) More Hestan codes [ER01](https://cooktoprepair.center/error-codes/hestan-er01/) [ER02](https://cooktoprepair.center/error-codes/hestan-er02/) [ER03](https://cooktoprepair.center/error-codes/hestan-er03/) [ER04](https://cooktoprepair.center/error-codes/hestan-er04/) [ER06](https://cooktoprepair.center/error-codes/hestan-er06/) [ER07](https://cooktoprepair.center/error-codes/hestan-er07/) [ER08](https://cooktoprepair.center/error-codes/hestan-er08/) [ER09](https://cooktoprepair.center/error-codes/hestan-er09/) Hestan builds this ### Induction cooktop A glass cooktop in the counter that heats the pan itself through magnetic coils, run by power boards and cooled by a fan underneath. Hestan builds this ### Rangetop A pro-style gas cooking top with its knobs across the front, set into a notch above a base cabinet, often with a griddle or char-broiler beside the burners. ## In Hestan's own words > ER05 - Ignition error. [Hestan KRT and KRTS rangetop use and care manual, Smart Burner error codes](https://cdn.brandfolder.io/W2HABDQZ/as/p662kxzmr55n7mhwcmq6g4/Rangetop_Use_and_Care_Manual.pdf) [Hestan KRT and KRTS rangetop use and care manual, Smart Burner error codes](https://cdn.brandfolder.io/W2HABDQZ/as/p662kxzmr55n7mhwcmq6g4/Rangetop_Use_and_Care_Manual.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Hestan KRTS smart rangetop, Smart Burner only; the KRTS is not in Hestan's 2026 indoor catalog. KRT rangetops without the Smart Burner show no ER codes. ## Hestan ER05 cooktop 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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Turn the burner off and let it cool. If it comes back, it needs a visit. ### What should I clean when my Hestan shows ER05? The burner ports and the igniter tip. Food and moisture there are the common reasons the flame will not catch. ### Does ER05 mean I smell gas? It should not; the burner stops trying after several attempts. If you smell gas, leave and call the gas utility from outside. ### Why does a Hestan KRTS Smart Burner stop trying to light and show ER05? After several re-ignition attempts without a flame, the Smart Burner ends the cooking cycle and shows ER05. Hestan points to dirty or blocked burner ports and the igniter. --- **[Read on the site: Hestan smart rangetop showing ER05 | CooktopRepair.center](https://cooktoprepair.center/error-codes/hestan-er05/)** **[Book a visit with CooktopRepair.center](https://cooktoprepair.center/schedule/)**