Analysis and Repair: The air conditioner does not cool, but the indoor unit can operate normally. The outdoor unit repeatedly starts/stops within about 3 minutes, and during these 3 minutes, the outgoing air is not cold. Based on this, it can be preliminarily judged as a blockage fault in the refrigeration system. Using a pressure gauge to measure the low-pressure pipe pressure, when the machine stops, the balanced pressure is 1.1 MPa. After starting, it gradually drops to 0.1 MPa, and after stopping again, it gradually returns to the balanced pressure. When the outdoor unit is running, frost formation is observed from the filter, through the capillary tube, to the low-pressure pipe. Based on this, it can be determined that the filter is blocked. After replacing the new filter, the test run of the machine is normal.
AUX KRR-45LW air conditioner does not cool, and the outdoor unit frequently starts and stops.
Summary of Beijing AUX Air Conditioner Repair Experience.
Tip: For faults where the outdoor unit starts frequently, first confirm whether it is an electrical system fault or a refrigeration system fault. During air conditioner maintenance, generally check the current and system pressure. High current and low pressure indicate a system blockage, so focus on checking the filter and capillary tube. If the filter is blocked, the following phenomena may occur: frosting at the capillary tube outlet, and even partial frosting of the evaporator. The low-pressure pressure will be lower than normal values, while the high-pressure pressure will be slightly lower than normal pressure; the exhaust temperature and casing temperature of the compressor will increase. Beijing AUX Air Conditioner Repair Phone Number.