Wuhan gree central air-condition after-sales service telephone Wuchang district service station

Wuhan Gree Central Air Conditioning After-sales? Service? Telephone? —400 - 7368 - 298 - ?

1. Analysis of common faults of air conditioning and non-refrigeration. Resident: Wuchang Factory Maintenance Service Station 027-5 123-86 18.

The 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. , should be repaired by professionals.

Reason 2: The filter screen is blocked.

Troubleshooting: the filter can be replaced, and the refrigeration system can be re-vacuumed, and refrigerant can be added, which will 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.

Do not use a multimeter to measure the voltage value, and use a power regulator if necessary.

Cause 3: Loose or broken wire connection.

Troubleshooting: Check the wiring part. Loose connectors should be plugged in again 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.

Reason 3: The fixing screw between the 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.

Exclusion: 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.

The cooling and heating adjustment of cold and warm air conditioning is out of order.

Cause 1: solenoid directional valve coil failure.

Troubleshooting: Measure the solenoid coil with a multimeter. If the coil is damaged or burned, please replace it with a new solenoid valve of the same specification.

Cause 2: The electric heating device is faulty.

Troubleshooting: Check with multimeter and replace the heating wire or temperature protector with the same specification.

Cause 3: Temperature controller failure.

Troubleshooting: Check the temperature controller with a multimeter. If the contact is still ineffective after rust removal, replace the thermostat with the same specification.

The air conditioner is noisy and vibrates.

Cause 1: the fixing screw is loose or falls off.

Troubleshooting: Check the loose parts of screws and tighten them.

Reason 2: Compressor pipeline collision.

Troubleshooting: Adjust the starting end of high and low pressure pipelines by hand or put a rubber tube on the pipeline that is easy to collide, so as to avoid making abnormal noise during collision.