--- title: "Hestan range showing ERR20 | RangeRepair.center" description: "What ERR20 means on Hestan ranges, what to check before booking, and when it is not a failure at all." url: "https://rangerepair.center/error-codes/hestan-range-err20/" --- # Hestan range showing ERR20 ERR20 is the highest-numbered code in Hestan's non-critical list. ## What ERR20 actually means. ERR20 is the highest-numbered code in Hestan's non-critical list. It tells you something in the range electronics has misbehaved, but not in a way that makes cooking unsafe. Hestan range display · also shown as ERR 20 What to do when ERR20 shows on the range ### Kind of code Controls and communication The display, the main board or the induction power board lost contact with one another, or one of them failed its own self-check. A power dip, a loose cable or moisture from a boil-over is ruled out before a board is replaced, and a range that keeps heating while this code shows is switched off at the breaker. ### Usually leads to Knobs, switches and controls Knobs that spin or crack, touch keys that do nothing, blank displays, clocks that reset and control boards that switch the wrong thing. ### Shows up as Range Control Panel Not Responding The touch keys or knobs on the range do nothing, only some keys work, the display is blank or frozen, or it beeps without starting. ### Make Hestan A California maker of professional-style gas and dual-fuel ranges with a restaurant-kitchen background. ### Source Hestan KRD dual-fuel range use and care manual, troubleshooting Hestan KRD dual-fuel and KRI induction ranges. ## Before you book, in this order. Each step comes from Hestan's own guidance for ERR20 on its ranges. Follow it to the end: the last card says whether this is a visit. 01 Reset the range at the breaker once. 02 If ERR20 returns, use the range as normal without the affected feature and book a visit when you can. ### Still there? It usually turns into [knobs, switches and controls](https://rangerepair.center/services/knobs-switches-and-controls/). Book with the code and the model number. ### What not to do ERR20 is not a Smart Burner message; those start with ER and appear on the Smart Burner knob. ## What you may notice with it. The range problems ERR20 tends to arrive with. Answer these at the range before anyone is booked. [All problems](https://rangerepair.center/problems/) Before you call ### [Range Control Panel Not Responding](https://rangerepair.center/problems/control-panel-not-responding/) [All 5 causes, cheapest first](https://rangerepair.center/problems/control-panel-not-responding/) It also comes with - [**Range Error Code**](https://rangerepair.center/problems/range-error-code/) Problem ### Range Control Panel Not Responding 5 causes, cheapest first Where ERR20 usually leads ## Knobs, switches and controls. **Knobs, keypad or control board · moderate.** Book a visit [What the job involves](https://rangerepair.center/services/knobs-switches-and-controls/) ## Hestan ranges. A California maker of professional-style gas and dual-fuel ranges with a restaurant-kitchen background. [Hestan range repair](https://rangerepair.center/brands/hestan/) More Hestan codes [ERR04](https://rangerepair.center/error-codes/hestan-range-err04/) [ER01](https://rangerepair.center/error-codes/hestan-smart-burner-er01/) [ER03](https://rangerepair.center/error-codes/hestan-smart-burner-er03/) [ER05](https://rangerepair.center/error-codes/hestan-smart-burner-er05/) [ER06](https://rangerepair.center/error-codes/hestan-smart-burner-er06/) [Er 03](https://rangerepair.center/error-codes/hestan-induction-er03/) [Er 47](https://rangerepair.center/error-codes/hestan-induction-er47/) [E2](https://rangerepair.center/error-codes/hestan-induction-e2/) [E6](https://rangerepair.center/error-codes/hestan-induction-e6/) [E8](https://rangerepair.center/error-codes/hestan-induction-e8/) [U 400](https://rangerepair.center/error-codes/hestan-induction-u400/) Controls and communication on other makes [AGA FE](https://rangerepair.center/error-codes/aga-fe/) [BlueStar F20](https://rangerepair.center/error-codes/bluestar-range-f20/) [Bosch e005](https://rangerepair.center/error-codes/bosch-e005/) [Café F7](https://rangerepair.center/error-codes/cafe-f7/) [Dacor C-d0](https://rangerepair.center/error-codes/dacor-range-c-d0/) [Electrolux Err](https://rangerepair.center/error-codes/electrolux-err-number/) [Fisher & Paykel F + number](https://rangerepair.center/error-codes/fisher-and-paykel-range-f-number/) [Frigidaire F1](https://rangerepair.center/error-codes/frigidaire-f1/) [All 67 codes of this kind](https://rangerepair.center/error-codes/#family-communication) Hestan builds this ### Gas range Open flames on top and a gas-fired oven below, all fed by one supply line behind the range and lit by igniters rather than a match. Hestan builds this ### Dual-fuel range Gas burners on top and an electric oven below, the combination most professional-style ranges use, needing both a gas line and a 240-volt circuit. Hestan builds this ### Induction range A glass top that heats the pan itself through copper coils and power boards, over an electric oven, with electronics doing almost all the work. ## In Hestan's own words > ERR20 code displayed. [Hestan KRD dual-fuel range use and care manual, troubleshooting](https://cdn.brandfolder.io/W2HABDQZ/as/wnhpnwf3n939j79g2wfp2z7h/Dual_Fuel_Range_Use_and_Care_Manual.pdf) [Hestan KRD dual-fuel range use and care manual, troubleshooting](https://cdn.brandfolder.io/W2HABDQZ/as/wnhpnwf3n939j79g2wfp2z7h/Dual_Fuel_Range_Use_and_Care_Manual.pdf) [Hestan KRD dual-fuel range use and care manual, power outage](https://cdn.brandfolder.io/W2HABDQZ/as/wnhpnwf3n939j79g2wfp2z7h/Dual_Fuel_Range_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 KRD dual-fuel and KRI induction ranges. ## Hestan ERR20 range 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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Reset the range at the breaker once. If it comes back, it needs a visit. ### What is the difference between ERR20 and other ERR codes on a Hestan range? Hestan splits its codes in two. ERR04, ERR05, ERR08 and ERR20 are non-critical, so you can keep cooking; any other ERR code is critical, and the oven should not be used. ### My Hestan range showed ERR20 after a power cut. Is that related? Hestan's manual also warns that the range shows an error message after power returns if any knob was left on. Set all knobs to OFF first; if ERR20 remains, treat it as the non-critical code it is. --- **[Read on the site: Hestan range showing ERR20 | RangeRepair.center](https://rangerepair.center/error-codes/hestan-range-err20/)** **[Book a visit with RangeRepair.center](https://rangerepair.center/schedule/)**