AC Problems and Repairs in Hemet
Pick the symptom that matches. Each page explains likely causes, what you can safely check, typical costs, and when to call.
This page lists the air conditioning problems Hemet-area homeowners most often need help with, from an AC that won't cool or won't start to frozen coils, refrigerant leaks, capacitors, heat pumps, and mobile home units. Each guide explains likely causes, safe checks, typical national cost estimates, and when to call a local contractor.
Last reviewed October 19, 2026.
Which AC problem are you dealing with?
Pick the symptom that matches. Each page explains likely causes, what you can safely check, typical costs, and when to call.
Emergency AC Repair
AC quit during a heat wave, or someone at home is at risk from the heat.
AC Not Cooling
The system runs but the house stays warm.
AC Won't Turn On
Thermostat, breaker, float switch, and capacitor problems.
Frozen AC Coil
Ice on the refrigerant lines or indoor coil.
Refrigerant Leak
Low refrigerant, hissing, and oily spots on lines.
Capacitor & Contactor
Outdoor unit hums, clicks, or won't start.
AC Making Noise
Buzzing, banging, squealing, or rattling.
AC Leaking Water
Clogged condensate drains and overflowing pans.
Heat Pump Repair
Heat pumps that won't cool, won't heat, or run nonstop.
Mobile & Manufactured Home AC
Package units and AC in mobile home parks.
AC Tune-Up
Pre-summer check and cleaning.
Repair or Replace?
When a new system makes more sense than another repair.
AC Repair Cost
Typical cost ranges by part, with sources.
When should you call an emergency AC pro in Hemet?
Call for urgent help, and call 911 first where noted, if any of these apply:
- Someone has signs of heat stroke: confusion, slurred speech, fainting, very high body temperature, or hot skin. Call 911 and start cooling them right away.
- The AC is out during a heat wave and someone at home is an older adult, an infant, pregnant, or has a medical condition that heat makes worse.
- The outdoor unit or air handler smells like burning, sparks, or keeps tripping the breaker. Turn the system off at the thermostat and breaker.
- Water is leaking from the air handler into ceilings, walls, or flooring.
- The AC runs but indoor temperatures keep climbing on a hot day.
- You smell gas near a gas furnace or package unit: leave and call 911 or SoCalGas from outside.
If someone shows signs of heat stroke, or you smell gas, call 911 first. Don't wait for a contractor.
Request AC repair
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