Real ChatGPT answer · index seedT68WSerSkbkcompleteFood and restaurants · cooking equipmentbrand

Why does my new induction cooktop intermittently throw a U400 error code when I use my favorite vintage cast iron skillet compared to my modern tri-ply stainless pans?

ChatGPTgpt-62 queries11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
Why does my new induction cooktop intermittently throw a U400 error code when I use my favorite vintage cast iron skillet compared to my modern tri-ply stainless pans?
2 real searches · 1 real-search pass
"U400" induction cooktop error code cast iron skilletGoogle ↗
OBSERVED
U400 error induction hob manufacturer meaning cookwareGoogle ↗
OBSERVED

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

Classifying 2 queries…

Searches and sources

ChatGPT2 real searches · gpt-6
"U400" induction cooktop error code cast iron skillet Google ↗
U400 error induction hob manufacturer meaning cookware Google ↗

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
"U400" induction cooktop error code cast iron skillet
OBSERVED
Google ↗
AI Mode ↗
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of 1
U400 error induction hob manufacturer meaning cookware
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1