Part 3: 5 Warning Signs Your Air Conditioner Needs Service Before Summer
Most air conditioners don’t fail all at once. They usually give warning signs weeks or months ahead of time.
Homeowners often ignore those signs until the first hot week of summer—when service companies are booked solid.
Here are five common indicators your system needs attention before the cooling season.
1. The System Runs Constantly but Doesn’t Cool Well
If your air conditioner runs most of the day but the house never quite reaches the thermostat setting, something isn’t working efficiently.
Common causes include:
Dirty evaporator coil
Restricted airflow
Low refrigerant charge
Weak capacitor or failing fan motor
A system that runs constantly also means higher electric bills and increased wear on the compressor.
2. Weak Airflow From the Vents
Good airflow is critical to how an air conditioner operates.
If airflow feels weak at your supply vents, possible causes include:
Blower wheel clogged with dust
Dirty evaporator coil
Blocked return air path
Failing blower motor capacitor
Restricted airflow can eventually lead to coil freezing and system shutdown.
3. Ice on the Indoor or Outdoor Unit
Ice should never be present on an air conditioner during normal operation.
Ice usually indicates one of these problems:
Restricted airflow
Low refrigerant levels
Dirty coil surfaces
Blower problems
When ice forms on the evaporator coil, cooling stops and the system can suffer serious damage if it continues running.
4. Unusual Noises During Operation
Air conditioners normally produce a steady, consistent sound.
New noises may indicate developing mechanical problems.
Examples include:
Buzzing – failing capacitor or electrical issue
Grinding – motor bearings wearing out
Clicking repeatedly – relay or contactor issue
Rattling – loose components or debris in the fan
Addressing these early can prevent larger failures later.
5. Rising Electric Bills
When an air conditioner becomes dirty or inefficient, it has to work harder to produce the same cooling.
Signs of efficiency loss include:
noticeably longer run times
reduced cooling performance
higher monthly electric bills
Routine maintenance helps restore efficiency and can reduce operating costs.
Why Spring Maintenance Matters
The best time to service an air conditioner is before the heat arrives, not during peak summer demand.
Spring maintenance typically includes:
cleaning condenser coils
inspecting blower components
checking electrical parts and capacitors
verifying refrigerant pressures
confirming proper airflow
This helps ensure the system runs efficiently and reliably when temperatures climb.
Grease & Threads HVAC Service
Serving Carlisle and the surrounding Wabash Valley area.
Residential and light commercial HVAC service, diagnostics, and seasonal maintenance.
Spring A/C Tune-Up Special: $125
Schedule service online:
https://calendar.app.google/NEBSdUFjbUY7yPxF6
