HVAC Troubleshooting in Greater Madison Area

Start with simple checks. If your AC runs but doesn’t cool, we can diagnose refrigerant leaks and restore cooling by repairing the leak and recharging refrigerant. We use advanced diagnostic tools to locate the source of the leak.

Quick checks:

• Check the thermostat.
• Inspect the circuit breaker.
• Change the air filter.
• Inspect vents for blockages.

We serve Madison, Fitchburg, and nearby areas with thorough AC diagnostics, repairs, and maintenance options to prevent repeat issues.

Updated: 2025-12-23 00:00:00

Need help in Fitchburg, WI? Call (608) 291-6473 or book online. "They worked hard to troubleshoot the issue and repaired it quickly." — Stephanie G.

The “$5,000 rule” is a budgeting guideline: multiply your HVAC system’s age by the quoted repair cost; if the result is over $5,000, replacement is usually the better long-term value. If it’s under $5,000, repair can make sense. Cardinal Heating & Air Conditioning provides thorough diagnostics, upfront pricing, and 24-hour emergency service in Madison and Sun Prairie to help you decide confidently.

Quick checks:

• Compare repair quote vs. age using the rule.
• Consider refrigerant leaks, repeated breakdowns, or uneven comfort.

Updated: 2025-12-23

Need help in Fitchburg, WI? Call (608) 291-6473 or book online.

"Quick diagnosis and repair." — Stephen R.

Common reasons a thermostat seems not to work include incorrect mode or temperature settings and a tripped HVAC breaker. Start with simple checks, then schedule diagnostics if it persists. We serve homes in Madison and Sun Prairie, and we offer 24-hour emergency heating support.

• Check the thermostat settings.
• Inspect the circuit breaker.
• Change the air filter.
• Examine the furnace pilot light.
• Inspect supply and return vents.

Updated: 2025-12-23

Need help in Fitchburg, WI? Call (608) 291-6473 or book online.

"They worked hard to troubleshoot the issue and repaired it quickly." — Stephanie G.

AC repair pricing depends on the issue, parts, and refrigerant needs. We provide upfront pricing after a diagnostic, and your technician confirms costs on site before work begins. Repairs commonly involve leak find-and-fix with recharge, evaporator coil or air handler service, or electrical components. We offer 24-hour emergency service. First-time customers can get $25 off through 2025-12-31. Maintenance plans help prevent breakdowns in Madison and Sun Prairie.

Updated: 2025-12-23

Need help in Fitchburg, WI? Call (608) 291-6473 or book online. "They worked hard to troubleshoot the issue and repaired it quickly." — Stephanie G.