To get a non-responsive air conditioner to start working again, execute a safe troubleshooting and reset procedure. Step 1: Go to your thermostat and turn the system off, then lower the temperature setting 5 degrees below ambient room temperature. Step 2: Go to your main electrical panel, turn the HVAC breaker off for 30 minutes to let components reset, and turn it back on. Step 3: Inspect and replace a dirty indoor air filter. Step 4: Clear any standing water out of your condensation safety float switch pan. Verification: Listen for the outdoor condenser fan and compressor to engage after the built-in delay timer expires.
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