

Hestan range
showing ERR20
ERR20 is the highest-numbered code in Hestan's non-critical list.
Mon–Sat, 8am–8pm
- Controls and communication
- Knobs, switches and controls
- Source: Hestan
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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 rangeKind of codeControls 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 toKnobs, 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 asRange 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.
MakeHestan
A California maker of professional-style gas and dual-fuel ranges with a restaurant-kitchen background.
SourceHestan 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.
Reset the range at the breaker once.
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. 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
Range Control Panel Not Responding
5 causes, cheapest first
Where ERR20 usually leads
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
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.
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.
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.
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.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about ERR20.
Can I clear ERR20 myself?
What is the difference between ERR20 and other ERR codes on a Hestan range?
My Hestan range showed ERR20 after a power cut. Is that related?
Back to your everyday
Still showing ERR20?
Book with the code exactly as it appears, the full model number, and whether you notice any smell of gas or scorching — with a code, that is where the diagnosis begins.