KONGRA LLC · HVAC diagnostics
Furnace Diagnostics
Illustrative checklist for gas and electric furnace diagnostics. Actual findings depend on on-site inspection with proper instruments. Gas work is performed only within KONGRA's legal license scope.
What we check
Furnace diagnostic checklist
Thermostat call & staging
Ignitor / flame sensor
Inducer motor & pressure switch
Gas valve operation
Heat exchanger inspection
Blower motor & capacitor
Limit switch / safeties
Combustion / venting
Pillar & related pages
Reviews
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FAQ
Frequently asked questions
What furnace systems do you diagnose?+
Residential gas furnaces, electric furnaces and furnace sections of packaged systems — cooling and heating mode diagnostics.
Do you handle gas work?+
Gas diagnostics and repair are performed only within KONGRA's legal license scope. Some work may require a properly licensed specialist.