mypros+
Error code reference

Electrolux Oven Error Code Etb

Boiler safety switch triggered (TSB)

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the Etb error code actually means

Your oven's steam boiler has shut itself down as a safety precaution because it detected a problem, such as running without enough water or having a buildup of mineral deposits inside. This is the oven's way of protecting itself from damage. You may be able to get it running again by resetting the safety switch and descaling the boiler, but a technician should inspect it if the error keeps coming back.

Diagnostic procedure

The full Etb procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Reset Safety Switch; descale boiler; Check X7 on ACU.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock Etb procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of Etb

Ranked by how often they cause this code
  1. 1Limescale accumulation in the boiler
  2. 2Missing or insufficient water in the boiler
  3. 3Incorrect TC probe insertion
  4. 4Safety thermostat (TSB) damaged or failed
  5. 5BOT parameter set too high

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about Etb

What does Etb mean on a Electrolux oven?
The Etb code means the boiler safety switch (TSB) has triggered and stopped the current cycle. This is a protective response to conditions such as no water in the boiler, excessive limescale buildup, an incorrectly inserted TC probe, a faulty safety thermostat, or a BOT parameter set too high. The oven will not resume operation until the fault is addressed and the safety switch is reset. If the code returns after resetting, further diagnosis is needed.
Is it safe to use my Electrolux oven while the Etb error is showing?
No, you should not attempt to override or continue using the oven while the Etb error is active. The TSB safety switch has tripped specifically to protect the boiler from damage due to overheating or dry operation. Continuing to use the appliance in this condition could damage the boiler, heating element, or other components and may present a safety risk.
How much does it cost to repair the Etb error on an Electrolux oven?
Repair costs vary depending on the cause. If the issue is resolved by descaling alone, the cost may be minimal, covering only a descaling solution and a service call fee, typically in the range of $50 to $150. If the safety thermostat needs replacement, parts and labor combined could range from $150 to $350 or more. A faulty ACU or water inlet valve would add to that cost, so a proper diagnosis is important before committing to a repair.
Can I fix the Etb error myself, or do I need a technician?
Some causes of the Etb error can be addressed without a technician, particularly resetting the safety switch and descaling the boiler, which should be the first steps taken. However, if the error returns after descaling and resetting, issues such as a failed safety thermostat, a faulty water inlet system, or an incorrect BOT parameter setting will require a qualified technician to diagnose and repair safely.
Will resetting the oven clear the Etb error code?
Resetting the safety switch may clear the Etb error temporarily, but if the underlying cause is not corrected, the fault will return. Descaling the boiler alongside the reset is strongly recommended as the first corrective step. If the error reappears promptly after resetting, there is likely a component failure or a configuration issue that requires hands-on diagnosis.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass