UrgentDiagnostic guide
Home A/C running but not cooling
When the unit is running but the house is warm, the answer is usually airflow, refrigerant, or a frozen coil — and we can usually tell which on the first visit.
01 / 04Likely causes
What is usually
behind it.
The shortlist of root causes we find on this call. The truck is stocked for most of these.
- 01Air filter clogged
- 02Indoor coil iced over
- 03Low refrigerant charge from a leak
- 04Outdoor capacitor weak or failed
- 05Condenser coil dirty
- 06Thermostat misconfigured or failing
02 / 04Right now
Do this while you wait.
Steps that can save product, prevent damage, and shorten the repair once we are on site.
Do this
- Set the thermostat to off and let the indoor coil thaw if it is iced
- Replace the air filter if visibly clogged
- Clear vegetation around the outdoor unit
Do not do this
- Do not keep running the system if the indoor coil is iced
- Do not pour water on the outdoor unit
03 / 04On the truck
What our tech will check.
The diagnostic flow we run on this call. Most are resolved on the first visit.
- 01Measure superheat and subcool to find leaks
- 02Inspect coils, capacitor, and contactor
- 03Verify refrigerant charge against spec
- 04Calibrate or replace the thermostat
Fast dispatch
Most calls see a tech in under two hours.
First-visit fix
Common parts on every truck.
Documented
Photos and notes attached to your ticket.
04 / 04Related service
This sits under
our hvac service.
Heating, cooling, and air handling for homes — diagnosed honestly and repaired without the upsell theater.
Related problems
Might also be one of these.
Other failures with similar symptoms or in the same trade.
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