I am completely lost trying to figure out the correct Nest thermostat wiring for my older furnace system that only has four wires and no apparent c wire terminal
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
I am completely lost trying to figure out the correct Nest thermostat wiring for my older furnace system that only has four wires and no apparent c wire terminal
1 real search · 1 real-search pass
Google Nest thermostat installation no C wire four wire system official support power connector compatibilityGoogle ↗
OBSERVEDComparison
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.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
Google Nest thermostat installation no C wire four wire system official support power connector compatibility Google ↗
- Nest thermostat compatibility · support.google.com
- Learn about the common or C wire · support.google.com