AC Not Cooling? Troubleshooting Guide

AC Not Cooling in Central Texas?

When your air conditioner runs but doesn’t cool your home properly, it’s frustrating - especially during hot Texas summers. Texas Temp Masters provides expert troubleshooting and repair services to get your AC cooling again quickly.

Common Reasons AC Won’t Cool

Thermostat Issues

• Incorrect temperature settings
• Wrong system mode (heat instead of cool)
• Dead batteries
• Faulty thermostat calibration
• Wiring problems

Airflow Problems

• Dirty or clogged air filter
• Blocked supply or return vents
• Closed dampers
• Ductwork leaks or disconnections
• Dirty evaporator coils

Refrigerant Issues

• Low refrigerant charge
• Refrigerant leaks
• Improper refrigerant type
• Overcharged system
• Restricted refrigerant lines

Electrical Problems

• Tripped circuit breaker
• Blown fuses
• Failed capacitor
• Bad contactor
• Compressor failure

Outdoor Unit Issues

• Dirty condenser coils
• Failed condenser fan
• Debris blocking airflow
• Frozen unit
• Compressor problems

Troubleshooting Steps to Try First

1. Check Your Thermostat

• Verify it’s set to “Cool” mode
• Set temperature 5°F below current room temp
• Replace batteries if display is dim
• Ensure fan is set to “Auto” or “On”

2. Inspect Air Filter

• Locate filter in return air duct or air handler
• Check if it’s visibly dirty or clogged
• Replace if you can’t see light through it
• Change filters monthly during summer

3. Check Circuit Breakers

• Locate your electrical panel
• Look for tripped breakers
• Reset by turning fully off, then back on
• Check both indoor and outdoor unit breakers

4. Examine Outdoor Unit

• Ensure unit is running when AC is on
• Clear debris from around the unit
• Check for ice formation (if present, turn off AC)
• Maintain 2 feet clearance around all sides

5. Inspect Indoor Vents

• Ensure all supply vents are open
• Remove any furniture or curtains blocking vents
• Check that return air vents aren’t blocked
• Feel for adequate airflow from vents

When to Call Texas Temp Masters

Call immediately if you notice:

• Complete system failure after troubleshooting
• Ice formation on indoor or outdoor unit
• Strange noises (grinding, screeching, banging)
• Burning smells or electrical odors
• Water leaks around indoor unit
• Warm air blowing from vents

Prompt scheduling, Monday-Friday 8AM-5PM. If you can’t wait, same-day emergency dispatch may be available for a $300 up-front fee (replacing, not adding to, the standard service call) when a technician isn’t already scheduled in your area that day.

Professional AC Repair Services

Refrigerant Services

• Leak detection and repair
• Proper refrigerant charging
• System pressure testing
• Refrigerant line repair
• R-22 to R-410A conversions

Electrical Repairs

• Capacitor replacement
• Contactor repair
• Compressor diagnosis and repair
• Thermostat replacement
• Wiring repairs

Airflow Solutions

• Coil cleaning and maintenance
• Duct sealing and repair
• Blower motor service
• Fan blade repair
• Ductwork modifications

Component Replacement

• Compressor replacement
• Condenser fan motors
• Evaporator coil replacement
• Air handler repairs
• Complete system replacement

Why Your AC Loses Cooling Over Time

Normal Wear and Tear

• Aging compressor
• Worn fan motors
• Deteriorating seals
• Corrosion on coils
• Electrical component failure

Lack of Maintenance

• Dirty coils reducing efficiency
• Clogged filters restricting airflow
• Low refrigerant from slow leaks
• Deteriorating ductwork
• Uncalibrated thermostats

Environmental Factors

• Extreme Texas heat
• Heavy dust and pollen
• High humidity
• Direct sun exposure
• Inadequate insulation

Preventing AC Cooling Problems

Regular Maintenance

• Change filters monthly in summer
• Schedule bi-annual professional tune-ups
• Keep outdoor unit clean and clear
• Monitor system performance
• Address small issues promptly

System Upgrades

• Install programmable thermostat
• Add zoning for better control
• Upgrade to high-efficiency system
• Improve home insulation
• Seal ductwork leaks

Best Practices

• Set thermostat to reasonable temperatures (72-76°F)
• Use ceiling fans to improve circulation
• Keep blinds closed during hottest hours
• Maintain proper humidity levels (40-50%)
• Don’t drastically change temperature settings

Signs You Need a New AC System

System Age

• Over 12-15 years old
• Frequent breakdowns
• Rising energy bills
• Uneven cooling
• Uses R-22 refrigerant

Performance Issues

• Can’t keep up with heat
• Long run cycles
• Short cycling
• Excessive noise
• Poor humidity control

Cost Considerations

• Repair costs exceed 50% of replacement
• Multiple repairs per year
• Energy bills increasing significantly
• System undersized or oversized
• Better efficiency available

Emergency AC Repair Services

Texas Temp Masters provides emergency AC repair throughout Central Texas:

Same-Day Dispatch, When Available

• Standard $100 service call if we’re already in your area that day; $300 up-front emergency fee if not (never both)
• Monday-Friday 8AM-5PM
• Fully stocked service trucks
• Licensed TDLR contractors
• Upfront pricing
• All major brands serviced

Service Areas

• Killeen & Fort Hood
• Waco & McLennan County
• Temple & Bell County
• Harker Heights
• Belton, Copperas Cove, Lorena, Hewitt, Woodway

What to Expect from Our Service

Fast Response

• Same-day appointments, schedule permitting
• 2-hour arrival windows
• Real-time technician tracking
• Courteous, professional service

Expert Diagnosis

• Thorough system inspection
• Advanced diagnostic tools
• Clear problem explanation
• Multiple repair options

Quality Repairs

• Genuine OEM parts
• Manufacturer warranties
• Code-compliant work
• 100% satisfaction guarantee

Fair Pricing

• Upfront estimates
• No hidden fees
• Competitive rates
• Flexible financing available

Call (817) 704-0706 for fast AC repair service when your system isn’t cooling properly.