

Hestan KRD oven
showing ERR20
ERR20 on a Hestan KRD dual-fuel oven display is the last of the four codes Hestan lists as non-critical electronic problems.
Mon–Sat, 8am–8pm
- Communication
- Controls and sensors
- Source: Hestan
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What ERR20
actually means.
ERR20 on a Hestan KRD dual-fuel oven display is the last of the four codes Hestan lists as non-critical electronic problems. It can take one oven feature out of use while normal cooking carries on.
Hestan oven display
What to do when ERR20 shows on the ovenKind of codeCommunication
The display and the main control board stopped hearing each other, or the board failed its own check. A power dip, a loose ribbon cable or moisture behind the panel is ruled out before either board is replaced, and an oven that stays on through this code is switched off at the breaker.
Usually leads toControls and sensors
Dead keys, a blank or garbled display, an oven that will not switch off or will not respond, traced to the board, the touch panel or their wiring.
Shows up asOven Control Panel Not Responding
The touch controls or buttons do nothing, the display is blank, or some keys work and others do not.
MakeHestan
A California maker of professional-style ranges; it lists no wall oven, so its ovens are the cavities of its gas and dual-fuel ranges.
SourceHestan KRD / KRDS Dual-Fuel Use & Care Manual, troubleshooting (Hestan's Brandfolder PDF linked from its product page)
From the troubleshooting table of the KRD / KRDS Use & Care Manual that Hestan links on its product page.
Before you book,
in this order.
Each step comes from Hestan's own guidance for ERR20 on its ovens. Follow it to the end: the last card says whether this is a visit.
Reset the appliance at its circuit breaker.
If ERR20 is gone, carry on cooking; note that it appeared.
If ERR20 stays, use the oven without the missing feature and book a visit soon.
What not to do
ERR20 is not the same as an unlisted code. Hestan treats every other code as critical and asks that the oven not be used if one persists.
What you may
notice with it.
The oven problems ERR20 tends to arrive with. Answer these at the oven before anyone is booked.
All problems
Oven Control Panel Not Responding
5 causes, cheapest first
Where ERR20 usually leads
Controls and sensors.
Hestan
ovens.
A California maker of professional-style ranges; it lists no wall oven, so its ovens are the cavities of its gas and dual-fuel ranges.
Hestan oven repairIn Hestan's own words
ERR04, ERR05, ERR08 or ERR20 code displayed.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. From the troubleshooting table of the KRD / KRDS Use & Care Manual that Hestan links on its product page.
Hestan ERR20 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.
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 Hestan oven codes?
Should I book a visit for ERR20 if the Hestan oven seems fine?
Back to your everyday
Still showing ERR20?
Book with the code exactly as shown, the full model number, and whether you can smell gas or burning — with a code, that is where the diagnosis starts.