If Maxwell's air conditioner breaks down and needs to be repaired, most people will find the after-sales service immediately, and then the maintenance master will repair it. In fact, this is also the right way. If you don't know, it is not recommended that you check the fault yourself unless you have professional knowledge. However, it is better to know some common sense of electrical appliances, because daily maintenance is also very important.
First, the reason why Macaulay air conditioner does not heat.
1. Insufficient refrigerant. A self-test can be simply performed to determine whether fluorine leaks.
2. Four-way valve cross gas. The heat pump Maxwell air conditioner switches the cooling and heating states through a four-way valve. Some refrigerants that should participate in heat exchange directly flow back to the air return pipe from the compressor outlet pipe at the four-way valve, which leads to the decrease of refrigerants participating in heat exchange and the decrease of heat exchange efficiency, thus resulting in insufficient heating capacity.
3. The check valve (also called check valve) leaks. The pressure difference between high and low pressure in refrigeration system decreases, the temperature of outdoor heat exchanger increases, and the heat obtained from the outside decreases, resulting in insufficient heating. When testing the system pressure, it will be found that the low pressure side pressure rises and the pressure difference between high and low pressure drops.
4. The defrosting controller is out of order. If the air conditioner in Maxwell can't turn into defrosting operation state in time, the evaporator will frost when the heat pump is heating, which will affect the heat exchange efficiency of the air conditioner in Maxwell, resulting in insufficient heating capacity or even shutdown. We should focus on observing whether the defrosting temperature sensing device is misplaced, whether the contact is stuck or poorly contacted, whether the fan impeller slips or the air duct is blocked, and whether the solenoid valve or starting relay fails.
5. The auxiliary electric heating function fails. If the electric auxiliary heating control circuit or electric auxiliary heating equipment can't work normally, it will lead to insufficient heating capacity of Maxwell air conditioner when the ambient temperature is low, and even Maxwell air conditioner doesn't heat at all when the environment is bad.
6. For the heat pump-assisted electric heating Maxwell air conditioner, if the ambient temperature is high (above 5℃) and low (below 0℃), and the heating capacity is insufficient or not heating, it should be suspected that the electric auxiliary heating control circuit or electric auxiliary heating equipment is out of order, and these two parts should be inspected emphatically during maintenance.
7. Environmental factors.
2. Analysis and elimination of common faults of McWeir air conditioner.
Mcwell air conditioner maintenance compressor has been running for a long time and can't stop by itself.
Cause 1: Due to insufficient refrigerant consumption, all or part of the refrigerant leaks.
Troubleshooting: find out the leaking parts, fill the loopholes, re-vacuumize the refrigeration system, and add refrigerant. And it needs to be repaired by professionals.
Reason 2: The filter screen is blocked.
Troubleshooting: replace the filter, re-vacuumize the refrigeration system, add refrigerant, etc. Should be maintained by professionals.
The compressor can't run.
Cause 1: Power failure.
Troubleshooting: Check and troubleshoot with multimeter and electric pen. If the fuse is broken, change the fuse, and if the wire is broken, change the wire.
Reason 2: The power supply voltage is too low.
It is not allowed to measure the voltage value with a multimeter, and a power regulator should be provided if necessary.
Cause 3: Loose wiring or open circuit.
Troubleshooting: Check the wire connection parts. The loose connectors should be re-plugged and tightened, and repaired by professionals.
The fan doesn't work.
Cause 1: poor contact of main control switch.
Troubleshooting: Measure the contact resistance of the main control switch with a multimeter. If the resistance is too large or zero, it should be repaired or replaced.
Cause 2: The fan motor coil is damaged.
Troubleshooting: Check with multimeter and replace the fan motor with the same specification and speed.
Cause 3: The fixing screw between the fan motor and the fan blade is loose.
Exclusion: Tighten the fixing screws.
Cause 4: The fan capacitor is open or short-circuited.
Troubleshooting: Check the capacitor and replace the capacitor with the same specification.
The compressor starts and stops frequently.
Cause 1: The room temperature control value is not set properly.
Elimination: appropriately increase the difference between the indoor control temperature and the original room temperature.
Reason 2: The ambient temperature is too high.
Elimination: Improve the working environment, such as setting grids to avoid direct sunlight and installing air conditioners in a well-ventilated environment.
Reason 3: The condenser is too dirty.
Disassembly: clean the condenser and remove dust from the outer surface of the condenser.
Mcvale maintenance address Tel:
①400-8765-8 19or
②400-670-7772
Tianjin McWeir Air Conditioning Service Center Hotline:
①400-6099- 180
②05 12-88830530
Service area: Suzhou, Wujiang, Kunshan and Kunshan.
Luoyang maikeweier air-condition after-sales service station telephone number
400 - 8765-8 19
Guangzhou McWeir Central Air Conditioning Maintenance Service Tel:
020-3807-3569
Chengdu mcwell central air-conditioning maintenance telephone 24-hour free customer service hotline:
400-68 1-8458
It's hot in summer and cold in winter, so we often use air conditioners. Because of frequent use, air conditioners don't get proper rest, so they will be damaged. Knowing the cause of the damage of the air conditioner in Macville can make the air conditioner work normally. Tips: In the process of using the air conditioner, you must pay attention to the rest time of the air conditioner. In the dead of night, don't let flammable items such as curtains get close to the air conditioner, otherwise it will cause a fire.
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