Air conditioner repair tips for trained experts in Brooklyn, NY

The information below will help you to learn more about your air conditioning system. This information will also help you to use your air conditioning in Brooklyn, NY in the most effective and efficient ways this way you will be able to save on utility bills and the life of your air conditioning will be extended.

WARNING: Do not take chances with your safety. The following tips are strictly posted for educational purposes. We strongly suggest not getting involved with any air conditioning repairs on your own. All air conditioning repairs require professional training and experience with gas or electric systems and can become very dangerous if you don’t have the knowledge for it. For professional AC Repair in Brooklyn, NY call Bear Appliance Repair in Brooklyn, NY.

Air conditioners in Brooklyn, NY

Single-phase 230-volt circuits: what happens when they blow

Many air conditioners operate on a single-phase 230-volt circuit. Two fuses protect this circuit. If either blows, the unit will not operate. In some air conditioning where this circuit is divided, the air conditioning blower motors may be (It) a 115-volt connection. Should one of the fuses blow, the blowers may continue to operate but the air conditioning compressor will not. Often the fuses are of the cartridge type and give no visual indica­tion that they are blown. So, remove the air conditioning fuses, use the R x I scale on Your volt-ohm meter, and test for continuity. No deflection indicates the blown fuse that must be replaced. Use only time-delay fuses of a failing not greater than that on the air conditioner’s specifications.

Using your meter, check each conductor of the air conditioning power cord for continuity. Next turn to the selector switch. This serves as a master, switch to provide either cooling or air circulation (blowers running with compressor off), and to select various fan speeds. To test it, un­plug the unit, remove the quick-disconnect terminals from the switch, Test for continuity across the suspected contacts as indicated on the wiring diagram. For instance, suppose you found that the compressor ran, the fan ran on high and medium speeds but not on low speed. The logical step would be to test for continuity between the line terminal low speed fan winding. While the selector switch determines the function of the room conditioner all it does not determine the degree of cooling desired.

The duty it delegates to the air conditioning thermostat simply a switch connected by linkages to a tube filled with refrigerant vapor. The tube has a flexilik, diaphragm at the switch end and is sealed at the other. The thermostat usually cycles the air conditioning compressor only while the blowers continue to run in order to prevent stratification of room air. Since Ad air is heavier than warm air, if the blowers shut down a blanket of air could form at floor level while at a height of 6 feet the air might lie as much as 15 degrees warmer. Continuous air circulation keeps these layers from developing. The air conditioning thermostat tube senses the temperature of the incoming air, .old the coldest point along the length of the tube will activate it. For this reason, the sensing tube’s placement is critical. It must not touch evaporator tubing at any point, or the unit will “short-cycle” off as soon as the tubing temperature is lower than the prescribed temperature, which in this case would be long before the air tempera­ture had dropped any measurable extent. To test the thermostat, check for continuity across the switching contacts. Since the thermostat is designed to operate at normal room temperature ranges of 75 to 80 degrees, the high setting should indicate continuity while the low setting should open the contacts. If you’re in doubt about the ambient (surrounding air temperature, the sensing tube may be cooled with an ice cube or warmed. by grasping it firmly in your hand. A word of caution: If it’s necessary to turn the air conditioning thermostat to a low position in testing it and the compressor is running at the time, wait at least five minutes before readjusting the setting. This gives the pressures in the refrigeration system time to equalize and prevents trying to start the air conditioning compressor under this load.

For professional AC Repair in Brooklyn, NY call a Bear Appliance Repair technician today.

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