Air Conditioner Freezes Up Causes and Options

Generally you could discover that your air conditioner freezes up after a while of operation. When this occurs, the cool air won’t be discharged correctly and ultimately an enormous block of ice might constructed up on the evaporator coil. You’ll discover that there’s much less airflow coming from the air air flow as ice started to clog the air motion.

Extra condensation may be seen on the drain pan. On the similar time, the room is not cool. Which means that it’s time to examine the causes of this drawback. Listed here are some doable causes.

1) Air Conditioner Freezes Up – RESTRICTED AIRFLOW

When air movement or air circulation from the unit to the room and vice versa is restricted, the exhange of thermal power between the air conditioner and the room is restricted. Consequently, a lot of the cool air continues to remain across the evaporator coil and fins inflicting the temperature round them to drop. Consequently, ice is fashioned and regularly extra ice started to constructed up and ultimately causes the air conditioner freezes up. 

Air Filters on the return air of the gear have to be serviced recurrently by taking them down and wash with water and cleaning soap. These filters are used to lure mud and different larger contaminants from going into the evaporator fins. Therefore, cleansing them not less than one or twice a month is extremely really useful. In lots of circumstances, customers won’t even clear them yearly till this drawback start to floor.

Evaporator coil and fins which might be positioned after the air filters can be clogged up on account of soiled filters. On this case, you have to to scrub them through the use of a sprig kind coil cleaner. The opposite different is to get the technicians to return and take down your complete evaporator for cleansing. This will probably be extra expensive. Subsequently, common upkeep of the evaporator coil and air filters will go a good distance in guaranteeing that your air conditioner continues to perform correctly.

Fan or blower on the evaporator unit is probably not functioning. When the unit is on, verify that there’s air movement popping out of the gear. In any other case, the fan could also be broken. On this case, the fan motor might have burnt or some unfastened connections might have occurred. Get a technician to verify if so.

Examine that there isn’t any blockage of air across the evaporator by guaranteeing that issues should not positioned too close to to the evaporator.

One different step you are able to do is to verify the set temperature of the air conditioner. Be sure that it’s not set decrease than 70 °F.

2) Air Conditioner Freezes Up – LOW REFRIGERANT

When the refrigerant within the system is low on account of leakage over time, there will probably be a lower within the saturation level temperature of the system. When this occurs, it can take a decrease temperature for all of the refrigerant liquid that has been compressed by the compressor to grow to be vapor within the evaporator.

Which means that the working temperature of the cooling coils has now dropped in comparison with the unique design. This decrease temperature will trigger moisture collected from the air to rapidly turns into ice on the evaporator when the temperature goes beneath beneath 32 °F.

These moisture that’s supposed be cooled to a stage which turns into water and drips to the condensate drainage pan is now caught on the evaporator coils and fins forming ice round them. When this continues on, ultimately a block of ice is fashioned on it. 

If you see the ice being fashioned on the evaporator, off the unit and watch for the ice to soften. It might take a couple of hours for all of the ice to soften. A sooner method is to on the air conditioner however utilizing Fan mode. Which means, solely the fan is working however the compressor is off.

This may cut back the melting time of the ice however you have to to be round to observe it as water might overflow and trigger harm to your furnishings or electrical gadgets.

A low refrigerant drawback can solely be solved by a certified HVAC technician as extra refrigerant should be added to the system.

3) Air Conditioner Freezes Up – LOW OUTDOOR TEMPERATURE

One other doable trigger is when you’re working your air conditioner when the outside temperature exterior the home is low. When this occurs, attempt to run the air conditioner utilizing fan mode or just use the skin air to ventilate your room.

For such gear to function, a technique is for producer to put in a fan pace controller to manage the pace of the condenser. 

What in case your unit is working in warmth mode and frost builds up on the outside? See extra clarification right here.