HVAC Troubleshooting Center
Diagnose and fix common HVAC problems with our troubleshooting guides
Emergency Situations - Act Immediately
๐จ
Gas Smell
EMERGENCYLeave immediately, call gas company from outside
โ ๏ธ
Electrical Burning Smell
URGENTTurn off system at breaker, call technician immediately
๐จ
Carbon Monoxide Alarm
EMERGENCYEvacuate, call 911, do not re-enter
โ ๏ธ
Major Water Leak
URGENTTurn off system and water, call technician
Quick Diagnostic Tools
Troubleshooting by Problem Type
Cooling Problems
AC not cooling, freezing, or cycling issues
AC Not Cooling
Common Symptoms:
- โขWarm air from vents
- โขNo temperature change
- โขRunning but not cooling
Easy to Medium
TroubleshootWater & Moisture Issues
Leaks, condensation, and drainage problems
Furnace Leaking Water
Common Symptoms:
- โขPuddles near furnace
- โขRust spots
- โขWater damage
Medium to Hard
TroubleshootHeating Problems
Furnace, ignition, and no-heat issues
Furnace Blowing Cold Air
Common Symptoms:
- โขCold air from vents
- โขFurnace runs but no heat
- โขCycling between warm and cold
Easy to Medium
TroubleshootCracked Heat Exchanger
Common Symptoms:
- โขYellow or flickering flame
- โขCO detector alarms
- โขHeadaches or nausea when furnace runs
Hard
TroubleshootWhen to Call a Professional
Try DIY First:
- โFilter replacements and cleaning
- โThermostat troubleshooting
- โCircuit breaker resets
- โBasic drainage clearing
- โSimple pilot light relighting
Call a Pro Immediately:
- โGas leaks or gas smell
- โElectrical burning smell
- โRefrigerant handling
- โHeat exchanger issues
- โMajor electrical repairs
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