Real ChatGPT answer · index seedtKjtS88pvDQcompleteHome services and improvement · plumbingcomparison

Looking at navien tankless error codes for my basement unit, could you tell me if fixing these recurring ignition issues is cheaper than buying a whole new system?

ChatGPTgpt-63 queries11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
Looking at navien tankless error codes for my basement unit, could you tell me if fixing these recurring ignition issues is cheaper than buying a whole new system?
3 real searches · 1 real-search pass
Navien tankless water heater E003 E012 ignition failure troubleshooting official manualGoogle ↗
OBSERVEDReason
Navien tankless water heater repair cost igniter flame rod gas valve replacement cost 2026Google ↗
OBSERVEDShort fact
Navien tankless water heater replacement cost installed 2026Google ↗
OBSERVEDShort fact

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 (3)
Short fact67%Other / navigationalComparisonConsequenceReason33%DefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

ChatGPT3 real searches · gpt-6
Navien tankless water heater E003 E012 ignition failure troubleshooting official manual Google ↗
Navien tankless water heater repair cost igniter flame rod gas valve replacement cost 2026 Google ↗
Navien tankless water heater replacement cost installed 2026 Google ↗

Queries

3 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
Navien tankless water heater E003 E012 ignition failure troubleshooting official manual
OBSERVED
Google ↗
AI Mode ↗
—Reason——1x
of 1
Navien tankless water heater repair cost igniter flame rod gas valve replacement cost 2026
OBSERVED
Google ↗
AI Mode ↗
—Short fact——1x
of 1
Navien tankless water heater replacement cost installed 2026
OBSERVED
Google ↗
AI Mode ↗
—Short fact——1x
of 1