Hestan Smart Burner
showing ER05
ER05 is Hestan's ignition code for the Smart Burner.
Mon–Sat, 8am–8pm
- Burners and ignition
- Burner and igniter repair
- Source: Hestan
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Three short steps, about a minute.
or call (844) 875-7576
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What ER05
actually means.
ER05 is Hestan's ignition code for the Smart Burner. The burner tried to relight several times without success, so the range ended the cooking cycle rather than keep sending gas.
Hestan range display · also shown as ER 05
What to do when ER05 shows on the rangeKind of codeBurners and ignition
A burner was asked to light and the range did not sense a flame, or the spark kept firing after the flame was there. Moisture or food in the igniter and a cap sitting out of place are ruled out before the spark module or a switch is replaced. A smell of gas outranks any code: leave the house and phone the gas utility from outside.
Usually leads toBurner and igniter repair
Gas burners that will not light, keep ticking or burn with a weak, yellow or uneven flame, traced to the igniter, the spark switch, the module or the burner itself.
Shows up asRange Burner Won't Light
A gas burner on the range top clicks but never catches, lights only after a long delay, or does nothing at all when the knob is turned.
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, Smart Burner codes
Hestan KRDS smart ranges. Every Hestan sealed burner has its own spark module with flame sensing and automatic reignition. Hestan's 2026 indoor catalog no longer lists a KRDS model, so these codes concern smart ranges already installed.
Before you book,
in this order.
Each step comes from Hestan's own guidance for ER05 on its ranges. Follow it to the end: the last card says whether this is a visit.
Turn the burner knob off. If you smell gas, leave the kitchen and call the gas utility from outside.
With the burner cold and dry, wipe the burner ports clean as the manual describes; if ER05 comes back, book a visit and leave the gas parts to the technician.
Still there?
It usually turns into burner and igniter repair. Book with the code and the model number.
What not to do
ER05 is not the same as ER04, which only means the power dropped during a cooking cycle.
What you may
notice with it.
The range problems ER05 tends to arrive with. Answer these at the range before anyone is booked.
All problems
Where ER05 usually leads
Burner and igniter repair.
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
Burner could not be ignited after several reignition attempts. Cooking cycle terminated.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Hestan KRDS smart ranges. Every Hestan sealed burner has its own spark module with flame sensing and automatic reignition. Hestan's 2026 indoor catalog no longer lists a KRDS model, so these codes concern smart ranges already installed.
Hestan ER05 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 ER05.
Can I clear ER05 myself?
Is ER05 on my Hestan Smart Burner a gas safety issue?
What usually causes ER05 on a Hestan Smart Burner?
Back to your everyday
Still showing ER05?
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.