HVAC

HVAC Furnace Safety Audit

A cracked heat exchanger or failed pressure switch does not announce itself. This structured audit walks technicians through every critical safety check โ€” from flue integrity to igniter resistance โ€” and produces a report the homeowner can keep.

20 Questions
~20 min To complete
4 Sections
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1

Unit Identification

4 questions
Customer name and address Required Text
Gerald Tran โ€” 804 Ridgecrest Dr, Scottsdale, AZ 85254
Furnace manufacturer and model number Required Text
Carrier 58CVA090 โ€” Serial: 3818A12345
Furnace installation year Required Number
2014 Confirm from data plate or permit records
Last service date Date
2023-10-15
2

Combustion & Heat Exchanger

6 questions
Heat exchanger visual inspection โ€” no visible cracks or corrosion? Required Pass / Fail
โœ“ Pass
Combustion air supply โ€” adequate and unobstructed? Required Pass / Fail
โœ“ Pass
Flue gas CO reading at unit (ppm) Required Number
4 Safe threshold is below 35 ppm
Flame color and pattern Required Select
Blue โ€” steady
Burners โ€” clean, no corrosion or blockage? Required Pass / Fail
โœ“ Pass
Photo of burner compartment Photo
๐Ÿ“ท Photo attached
3

Venting & Flue

4 questions
Flue pipe โ€” properly connected, no gaps or rust? Required Pass / Fail
โœ“ Pass
Vent termination โ€” clear of debris and proper clearance? Required Pass / Fail
โœ— Fail Bird nest partially blocking PVC termination elbow. Removed on site.
Draft inducer motor โ€” operating smoothly? Required Yes / No
Yes
Pressure switch(es) โ€” test passed? Required Pass / Fail
โœ“ Pass
4

Electrical, Controls & Performance

6 questions
Igniter resistance (ohms) Required Number
62 Typical healthy range: 40โ€“90 ohms depending on manufacturer
Limit switch โ€” cycles correctly? Required Yes / No
Yes
Supply air temperature (ยฐF) Required Number
118 Target: 120โ€“140ยฐF depending on system
Return air temperature (ยฐF) Required Number
68
Temperature rise within spec? Required Pass / Fail
โœ“ Pass Rise: 50ยฐF โ€” nameplate spec: 40โ€“70ยฐF
Filter condition Required Select
Dirty โ€” replaced

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๐Ÿ”ฅ HVAC Furnace Safety Audit Use This Template โ€” Free