What should I do if Haier KFRd 71WL F air conditioner e8 appears?

This depends on what type of air conditioner your air conditioner is, and the reasons for different types of air conditioners to display E8 are also different, for example, my home was because of the communication failure between the indoor motherboard and the display board, but you don't know what model it is, so I don't know the actual situation, so in this case, you'd better call ** to the customer service and call them to send someone to show you, if you get it yourself, it's probably not good and dangerous.

The inverter hang-up shows that E8 is a communication fault between the indoor motherboard and the display board or a dust removal reset fault; The fixed-speed hang-up shows that E8 is a filter reset fault; The fixed speed cabinet shows that E8 is an indoor and outdoor communication fault or an electrostatic precipitator fault; The inverter cabinet shows that E8 is a communication fault between the indoor motherboard and the display board.

Internal machine dust removal treatment method:

1. Clean the filter screen, use a toothbrush, a fine row pen, wet wipes, etc. to clean the dirty parts of the air outlet, fan roller impeller, and evaporator after lifting the filter, and remember not to cause damage.

2. After cleaning, it is best to pour a few cups of water along the evaporator, rinse the sink by the way, to prevent the residue and dirt from blocking the drainage pipe.

Cleaning and dust removal method of external machine:

1. Unplug the power supply of the air conditioner, connect a water pipe for car washing, use tap water to rinse up and down, use a plastic bucket to carry water to rinse without conditions, prepare a brush with a handle (a few yuan a, a lot of hardware stores), brush the aluminum wings up and down while flushing, and remember not to deform the aluminum wings.

2. Don't doubt that the circuit will be wet, the outside unit of the air conditioner is fine in the wind and rain, but some air conditioners with poor quality and materials will rot quickly.

Hello, dear. We are glad to answer for you, Haier air conditioner report F8 may be the following faults: 1. It may be too much refrigerant, too large load, and large operating current.

Use a pressure gauge to detect the system pressure, generally this machine uses R410A refrigerant, and the pressure is 7 MPa when the ambient temperature is high. 2. It may be that the condenser has poor heat dissipation, resulting in excessive operating current. Clean the outdoor unit exchanger, and observe whether the outdoor unit cooling fan is working with a code.

3. It may be that the system pipeline is blocked, the high voltage is too high, and the current is too large. Check whether there is suffocation in the pipeline connecting the internal and external machines, and if this phenomenon occurs, the pipeline needs to be replaced. 4. It may be that the main control circuit board is faulty, and it is necessary to check the circuit to confirm whether there is a short circuit or fuse the dust hopper, and the corresponding components need to be replaced.

Haier Chunmao air conditioner.

Display F8 refers to the temperature sensor of the coil in the indoor unit.

There was a running problem. Most of them are caused by loosening between the sensor lead and the plug, and the failure phenomenon of the air conditioning pipe temperature sensor is, the resistance value of the indoor ring temperature sensor becomes larger, which causes the air conditioner to start frequently, and the resistance value of the indoor pipe temperature sensor becomes smaller, causing the whole machine to protect the fault phenomenon soon after starting. <

Demo model: Haier KFR-35GW 06EDS81 System version: inverter air conditioner.

Haiyan Zaoer air conditioner shows that F8 means that there is a problem with the temperature sensor of the coil in the indoor unit. Most of them are caused by the loosening between the sensor lead and the plug and the rough forest dismantle, and the failure phenomenon of the air conditioning pipe temperature sensor is there, the resistance value of the indoor ring temperature sensor becomes larger, which causes the frequent start fault of the air conditioner, and the resistance value of the indoor pipe temperature sensor becomes smaller, which causes the whole machine to protect the fault phenomenon soon after starting.

HaierInverter air conditioningThe solution to display F8 is to press the restart switch or re-fix the sensor plug. The F8 fault indicates the temperature sensor of the air conditioner.

In the event of a failure, the resistance of the indoor ring temperature sensor becomes larger, which causes the air conditioner to start frequently, and the resistance value of the indoor pipe temperature sensor becomes smaller, which causes the protection of the air conditioner, and the temperature sensing performance of the indoor ring temperature and pipe temperature changes, causing the air conditioner to work abnormally.

Introduction: Demolition of the mountain.

1. Prevent the air conditioner from being bumped.

Protect the condenser.

with the heat sink of the evaporator. The heat sink of the condenser and the evaporation hall cracker is made of millimeters of aluminum sheet sleeved into the copper tube and then expanded into the tube, which cannot withstand the collision, and if the heat sink (reverse) is damaged, it will affect Haier.

2. Power protection check.

Correct selection of fuses (fuses.

Air conditioners generally need a certain rated voltage to meet the start of the air conditioner when they are used, and the power supply performance of the home must be able to drive the Haier air conditioner to ensure the correct power of the Haier air conditioner.

3. Clean the air conditioner filter.

Clean the air conditioner filter frequently. Generally, it is cleaned once every 2-3 weeks, or the cleaning cycle of the air conditioner filter is specified according to your own use.

Summary. Hello dear, there are two situations in which the Haier air conditioner appears F7.

Hello dear, there are two situations in which the Haier air conditioner appears F7.

1. F7 refers to the failure of the temperature beam permeability sensor of the outdoor unit coil unit, open the rubber leakage ridge outdoor unit, check whether the circuit of the temperature sensor is normal, and see if it is disconnected or short-circuited.

2. F7 refers to the communication failure between the indoor motherboard and the control panel, which means that the communication line of Wu Ziyou's control line has a book line problem, which should be the poor contact between the communication line of the cavity panel and the motherboard or the place where the communication line is broken and disconnected, resulting in the failure of control signal reception.

If you want to repair, you can call the official maintenance **<>