- 98 Morris Turnpike, Newton, NJ 07860
- constantservice3@yahoo.com
- (973) 948-0680
AC PROBLEM · DIAGNOSIS GUIDE
Five common causes, what you can check yourself, and when it's time to stop tinkering and call a pro. Same-day appointments in Newton and Sussex County.
A clogged filter restricts airflow, which can freeze the evaporator coil and stop cooling entirely. Always check this first — it's free and takes 60 seconds.
Verify the thermostat is set to COOL (not FAN-ONLY), the temperature is below room temp, and that the batteries (if any) aren't dead.
If the outdoor unit isn't running at all, you may have a tripped breaker, a blown capacitor, or a failed contactor. If it's running but warm air is coming out of vents, refrigerant levels may be low.
Low refrigerant means the system can't absorb heat from your home — it runs but doesn't cool. This is the most common cause we see in calls. Diagnosis and recharge typically runs $250-$800.
If you see ice on the copper lines outside or the indoor unit, the coil is frozen. Turn the system OFF immediately and let it thaw (4-6 hours), then check the air filter and call us.
Three quick checks that save you a service call: (1) Replace the air filter. (2) Check the outdoor unit is plugged in and the breaker isn't tripped. (3) Make sure return-air vents are open and not blocked by furniture or rugs.
If the system still won't cool after those three checks, call us. We waive the diagnostic fee when you book the repair, so you only pay for actual work performed.
$150-$355.
$250-$800.
$355-$625.
$800-$1,500.
$1,200-$1,800 (often this is the point where replacing the system makes more sense).
“Our AC ran all day but barely cooled. Constant Air diagnosed a refrigerant leak in 20 minutes and had us cooling again by dinner. Honest pricing, no upsells.”
Steve W. · Sparta, 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.
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