Bosch HII8056U 800 Series 30 in Induction Range with Home Connect Er2 Error Fix: Power Electronics Overheated

Error code Er2 on the Bosch HII8056U 800 Series 30 in Induction Range with Home Connect means: Power Electronics Overheated. The power electronics (IGBT modules/inverter board) that drive the induction coils have overheated. The cooktop will shut down until the electronics cool. Check the cooling fan — it should run whenever the cooktop is in use. Ensure ventilation openings are clear and not blocked by cabinetry or debris. Ambient temperatures above 95°F can contribute to overheating. If the fan runs but overheating persists, the IGBT heat sink compound may need renewal (professional service).

The most successful fix is "Renew Heat Sink Compound and Inspect IGBT Modules" (hard difficulty, ~120 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Yes — the top-ranked community fix ("Renew Heat Sink Compound and Inspect IGBT Modules") is rated hard difficulty and takes about 120 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Isopropyl alcohol, Lint-free cloth, Thermal compound applicator.

DIY cost: $20-$40. Professional repair typically costs $300-$450. Many homeowners save money by trying the top-ranked community fix first.

The Bosch HII8056U 800 Series 30 in Induction Range with Home Connect has 8 other known error codes, including: E011 (Oven Temperature Sensor Open), E012 (Oven Temperature Sensor Shorted), E013 (Oven Maximum Temperature Exceeded), E015 (Door Lock Fault — Self-Clean), E016 (Door Lock Timeout), and 3 more.

Error code Er2 also appears on 2 other Bosch models: HDI8056U 800 Series 30 in Induction Slide-In Range, HIS8655U 800 Series 36 in Induction Cooktop. The fix may vary by model, so check each model's specific page for tailored repair steps.