AC PROBLEM · DIAGNOSIS GUIDE
Strange AC noises are often the first warning of a coming failure. Catching the issue early usually means a cheaper repair.
Usually a loose or broken part inside the compressor — fan blade, piston, connecting rod. Stop running the system and call us.
Often an electrical issue — failing contactor, capacitor, or relay. Sometimes vibration from a loose mounting.
Motor bearings are failing. Catch this within a few days and you can replace the motor for $400-$700. Wait until the motor seizes and you may need a new system.
Refrigerant leak in most cases. Sometimes a valve issue. Either way, professional diagnosis is needed.
Often a worn fan belt (on older systems) or a failing blower motor. Quick fix if caught early.
Failing thermostat, control board, or relay. The system is trying to start but failing.
Most noisy-AC repairs catch the failure before it becomes a full breakdown. Cost is significantly lower if you call when you first hear the sound versus after the system fails completely.
Same-day appointments available in Newton and Sussex County. Call (973) 948-0680. Diagnostic fee waived when you book the repair.
“The grinding noise turned out to be a failing blower motor. They explained the choice — replace now for $500 or wait until it dies and replace it under an emergency call for more. Easy call.”
Mark T. · Randolph, NJ
Same-day appointments in Sussex and Morris counties. 24/7 emergency dispatch — answered around the clock by a real on-call technician.
98 Morris Turnpike, Newton NJ · NJ HVACR Lic #19HC00108700 · Since 1999
At Constant Air, we specialize in delivering high-quality heating, ventilation, and air conditioning services that keep your home and business comfortable all year round.
Copyright © 2025 All Rights Reserved. Constant Air Service