Ice on the AC Lines or Indoor Coil
Frost on the big copper line or a block of ice on the indoor coil looks strange in July, but it is a common call. Switch the system to Off and the fan to On so the ice melts. Then call (732) 858-0915 and a contractor will look for the reason it froze.
Why a coil freezes
- Not enough air. A packed filter, closed registers, a dirty coil or a slow blower can push the coil below freezing.
- Low refrigerant. A leak lowers coil pressure and temperature until moisture freezes on it.
- Running on cool nights. Some systems ice up when you run them on a 60 degree night with the thermostat set low.
- Blower motor failing. A weak motor slows down as it heats up.
While it thaws
Melting ice can take several hours. Put towels around the indoor unit, because that water all has to go somewhere and a drain pan can overflow. Do not chip at the ice. The fins and tubes bend easily, and a punctured coil turns a small repair into a big one.
Once it thaws, change the filter and try the AC again. If it ices up again within a day, a contractor needs to look at the airflow or the refrigerant.
Turn it off and call. A contractor can find what froze it.
(732) 858-0915Questions about Frozen AC Coil in Middletown
- Is it safe to run my AC with ice on it?
- No. Liquid refrigerant can flood back to the compressor and damage it. Keep the cooling off until the ice is gone and the cause is fixed.
- Why does the outdoor line frost over too?
- The ice can travel back along the suction line to the outdoor unit. It is the same problem, just spread out further.
Free to call. A person answers 24 hours a day and connects you with a local contractor.
(732) 858-0915