Real ChatGPT answer · index seedXqhQThnlAFgcompleteHome services and improvement · plumbingcomparison

Navien tankless error codes are flashing on my unit in the basement and I need to know if this model is more reliable than a standard Rheem tank heater

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

The searches the AI actually ran for this prompt.

SEED QUERY
Navien tankless error codes are flashing on my unit in the basement and I need to know if this model is more reliable than a standard Rheem tank heater
2 real searches · 1 real-search pass
Navien tankless water heater error codes official troubleshooting manual maintenance warranty lifespan Rheem tank water heaterGoogle ↗
OBSERVEDReason
Navien tankless vs storage tank water heater lifespan maintenance reliability comparisonGoogle ↗
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 (2)
Short factOther / navigationalComparison50%ConsequenceReason50%DefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 1 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

ChatGPT2 real searches · gpt-6
Navien tankless water heater error codes official troubleshooting manual maintenance warranty lifespan Rheem tank water heater Google ↗
Navien tankless vs storage tank water heater lifespan maintenance reliability comparison Google ↗

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
Navien tankless water heater error codes official troubleshooting manual maintenance warranty lifespan Rheem tank water heater
OBSERVED
Google ↗
AI Mode ↗
—Reason——1x
of 1
Navien tankless vs storage tank water heater lifespan maintenance reliability comparison
OBSERVED
Google ↗
AI Mode ↗
—Comparison——1x
of 1