What E22 Means
E22 is documented as the thermal sensor circuit reporting a short to the control board, with a possible problem in the thermal sensor, the control board, or the associated wiring. It is the counterpart to E21 - the same circuit failing the other way.
Common Causes of E22
- Shorted thermal sensor
- Damaged sensor wiring
- Control board fault
🔧 One Safe Check You Can Try
Isolate the appliance for five minutes and restore power. If E22 returns, stop using heated modes and arrange service. Note whether the appliance runs hotter than expected before the code appears; that detail is worth passing on. A microwave capacitor can hold a lethal charge long after the oven is unplugged - this is the one appliance where "unplug it and have a look" is genuinely dangerous advice.
⚠ Why You Shouldn't Go Further Than That
- A microwave capacitor can hold a lethal charge long after the oven is unplugged - this is the one appliance where "unplug it and have a look" is genuinely dangerous advice.
- High-voltage components share the cabinet with the sensor wiring.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.