HVAC Furnace Diagnostic Repair — Nesting debris in combustion air
- HVAC
On May 11, 2026, Arch Air Services documented HVAC at 4 Edgemont Court, St. Charles, MO 63301.
- Record date
Available findings
- HVACCompleted work$152
Diagnosed pressure switch not closing; found and removed nesting debris from combustion air intake in PVC flue pipe above furnace; cycled furnace multiple times with intermittent ignition errors remaining — additional flue vacuum cleaning and bird screen installation proposed as a separate quote.