AC & Heating

Common issues we handle

• Low refrigerant or a leak in the AC system
• Failed AC compressor, condenser, or blower motor
• Heater core or coolant flow problems
• Blend-door, control panel, or electrical faults
• Clogged cabin air filter or mold in the vents

Services in this category

• Heater Warm On One Side OnlyOn a dual-zone climate system, one side gets warm while the other stays cool. This is usually a blend-door actuator or control issue on the cool side.
• AC Refrigerant LeakYour AC slowly loses its cooling because refrigerant is escaping. A leak is the most common reason AC stops blowing cold and needs to be found and sealed, not just refilled.
• Burning Smell From AC Or HeaterA burning, hot, or electrical smell when you run the AC or heater. This can signal an overheating motor, electrical fault, or debris — and should be checked promptly.
• AC System DiagnosticA full inspection of your air conditioning system to find why it isn't cooling properly — pressures, leaks, the compressor, and electrical checks before any repair.
• AC Cold Then Goes WarmThe AC blows cold at first, then gradually turns warm. This intermittent cooling usually points to a system that's low on refrigerant or freezing/over-cycling.
• Car AC Blowing Warm Or Hot AirThe AC is on but air comes out warm or even hot. This usually means the system isn't cooling at all — a refrigerant, compressor, or control problem.
• Car AC Smells BadA musty, moldy, or dirty-sock smell comes from the vents when you turn on the AC. This is usually mold and bacteria growing on the evaporator or cabin filter.
• Air Only Comes From Defrost VentsNo matter which mode you select, air only comes out of the windshield (defrost) vents. This is a mode-door (vent selection) problem.
• Heater Blowing Cold AirYou select heat but the vents blow cold. The fan works, but no warmth is being added — typically a coolant flow or blend-door issue.
• Weak Or Not Enough HeatThe heater works but never gets truly hot — only lukewarm air. Common causes are low coolant, a partially clogged heater core, or a thermostat issue.
• Windows Fog Up InsideThe inside of your windows fogs up, especially in cool or humid weather. This is a humidity problem usually tied to the AC, cabin filter, or a coolant leak.
• AC Smells Like Vinegar Or Rotten EggsA sharp vinegar or rotten-egg (sulfur) smell from the vents. Usually mold/bacteria buildup, a clogged drain, or moisture problems in the AC system.
• AC Cold On One Side OnlyOn a dual-zone system, one side blows cold while the other blows warm. This is usually a blend-door actuator or control problem rather than the AC itself.
• AC Compressor Not Turning OnThe AC compressor never engages — you hear no click and the air never cools. This is an electrical, clutch, or safety-switch issue stopping the compressor.
• Car Heater Not WorkingThe heater blows cold or barely-warm air and the cabin won't warm up. Usually a coolant, heater-core, or blend-door problem rather than the AC side.
• Blower Motor Not WorkingNo air comes from the vents on any setting — the blower fan isn't spinning. The cooling and heating may be fine, but without the blower no air reaches the cabin.
• AC Not Cold At Idle, Only When DrivingThe AC only blows cold while you're moving and goes warm when stopped at a light or idling. This points to airflow or fan problems at the condenser.
• Defrost Or Defogger Not WorkingThe defrost or defogger won't clear your windshield or rear window. This can be airflow/mode-door, AC, or rear-defrost element problems.
• Heat Only When Driving Not At IdleThe heater is warm while driving but goes cold when you stop or idle. This usually points to low coolant, a weak water pump, or circulation problems.
• Weak Airflow From VentsThe AC or heat is on but very little air comes out of the vents, even on high fan. Usually a blockage or a failing blower, not the cooling system.
• Water Leaking Inside Car From ACWater pools on the passenger floor or the carpet is wet when you use the AC. This is usually a blocked AC drain backing up inside the cabin.
• AC Compressor Replacement CostUnderstand what an AC compressor replacement involves and what drives the cost — parts, labor, refrigerant, and whether related components also need attention.
• Car AC Making NoiseRattling, clicking, or grinding when the AC is on. Noises usually come from the compressor, clutch, or debris in the blower, and shouldn't be ignored.
• AC Hissing Or Buzzing NoiseA hissing or buzzing sound from the AC, often near the dashboard or under the hood. This can be normal refrigerant flow or a sign of a leak or valve issue.
• Squealing Noise When AC Is OnA loud squeal or screech the moment you turn on the AC. This usually comes from the drive belt or a struggling compressor under load.
• AC Or Heat Controls Not RespondingThe climate control buttons, knobs, or screen don't respond, or settings won't change. This is usually an electrical, module, or control-panel fault.
• AC And Heat Not Working At AllNeither the AC nor the heater produces any conditioned air — no cold, no warm, sometimes no airflow at all. This points to a shared fault: power, blower, or controls.
• Car AC Not Blowing Cold AirYour AC runs but only blows warm or room-temperature air. The cooling system isn't doing its job — usually a refrigerant or compressor issue that's worth fixing before the heat sets in.
• Freon Recharge For Car ACTopping up the refrigerant (often called freon) so the AC blows cold again. A recharge restores cooling, but if the level dropped there may be a leak to address.
• Temperature Won't ChangeYou turn the temperature dial but the air stays the same — always hot or always cold. This is typically a blend-door actuator or control problem.
• How Much To Recharge Car ACWhat an AC recharge typically costs and what affects the price — refrigerant type, how much is needed, and whether a leak check or repair is required first.

Frequently asked questions