How to repair the pH of Gree cabinet machine frequency conversion 2 HP display?

Fault content: The input voltage of the DC bus is too high.

The principle of sharing the DC bus, that is, the rectifier is separated from the inverter. In this way, a large rectifier unit can have several inverters, and the DC bus of each inverter is connected in parallel.

As a result, the energy fed back by the inverters can be used against each other. All the inverter energy deficits are then replenished by the rectifier bridge, which is supplied by the grid. Therefore, this application has the highest power saving rate.

His inverter two-horse display PH can be fixed by the function key.

If you want to repair, you generally go to some service outlets of Gree after-sales service, call ** to carry out, and find a master to repair it.

This inverter two-body insurance of Gree cabinet machine is to be repaired. You should find a professional to fix it.

It's better not to do this ourselves, because we're used to it.

Gree air conditioner shows pH solution:

1.First of all, if the press does not start, there is no problem with the temperature setting, but there is no response when the power is applied. If the press does not rotate the fan, you must first see if the capacitor is damaged; The capacitor bulge needs to be replaced.

2.Secondly, if the capacitor damage is ruled out, then check whether the air conditioning compressor has power supply, and if there is power supply, check whether the overload protection of the compressor is damaged; If there is no power supply, check whether the connecting cables in the house are wrong or damaged; Secondly, it is necessary to check whether the temperature control is working normally, and if there is a problem, it is best to replace the temperature control; In addition, it is necessary to focus on checking the relay and the front drive, and replace it in time if there is a problem.

3.Finally, if the above does not solve the problem, please go to the repair point to repair the motherboard or return it to the factory for repair, and you can also ask other professionals. Generally this situation may be related to the DC voltage being too high, and there may be a problem with the motherboard.

Gree cabinet machine frequency conversion 2000 display pH to see the fault**. Find the maintenance staff at the factory.

How to repair the pH of the Gree cabinet machine frequency conversion two-horse display? Gree cabinet machine frequency conversion two-horse, I think it is better to ask a professional to repair it in this case.

Gree air conditioner. The panel shows that the DC bus voltage of the PH generation Tuanfan Qi ** force air conditioner is high, which may be caused by the high voltage of the air conditioner. Gree air conditioner shows PH as a fault code, but generally don't worry, the air conditioner is generally not easy to damage, and the air conditioner has the function of self-protection.

You can try unplugging the outlet of the air conditioner and turning it back on after the air conditioner has stopped running for a while, which will generally solve the problem. If the press does not start, there is no problem with the temperature setting, but there is no response when the power collapses, the press does not turn the fan, you can check whether the capacitor is damaged, if the capacitor is swollen or damaged, you need to replace the capacitor. After removing the damaged capacitor, inspect the air conditioner compressor.

Whether there is a power supply. If there is a power supply, check if the compressor overload protection is damaged. If there is no power supply, check if the room connection is not misconnected or damaged.

Second, check if the temperature control is normal. If there is a problem, it is best to replace the temperature control in the car. It should be noted that this applies to most of Gree's air conditioner models.

Fault**:p h

Fault content: The input voltage of the DC bus is too high.

Cause of failure: 1. Check whether the pin is loose, poor contact or disconnection.

2. Check whether the internal control circuit board is normal.

3. Check whether the control circuit board of the external machine is faulty.

4. Check whether the main control circuit board is faulty.

It is recommended to find a professional maintenance personnel to check it.

Gree air conditioner shows pH solution:

First of all, if the press does not start, there is no problem with the temperature setting, but there is no response when the power is applied. If the compressor fan does not rotate, check whether the capacitor is damaged; The capacitor drum needs to be replaced.

Secondly, if the capacitor damage is ruled out, check whether the air conditioner compressor has a power supply, and if there is a power supply, check whether the overload protection of the compression machine is damaged; If there is no power supply, check if the room connection is not misconnected or damaged. Secondly, it is necessary to check whether the temperature control is normal, and it is best to replace the temperature control if there is a problem with the sensitive bend; In addition, it is also important to check the relay and the front driver, and replace it in time if there is a problem.

Finally, if the above does not solve the problem, please go to the repair point for the motherboard repair or return to the factory for repair, or ask another professional. In general, this situation may be related to high DC voltage, or it may be a problem with the motherboard.

Analysis of common faults of Gree air conditioner**

E1: Compressor high pressure protection.

Solution: Obstacle in front of the condenser.

When the outdoor ambient temperature is higher than 43 degrees, start cooling.

Anomaly control loops.

Excessive pressure on the high-pressure pipe causes the high-pressure switch to operate.

E2: Evaporator freeze protection.

Solution: The indoor fan does not rotate or the air outlet is blocked.

The indoor ambient temperature is below 18 degrees.

The thermoreceptor of the tube is broken.

The plug of the temperature sensor head of the pipe is not plugged in properly.

The control loop is abnormal.

E3: Compressor low voltage protection.

Solution: Insufficient refrigerant.

The expansion valve is half-blocked, and the solenoid valve is faulty.

The filter is half clogged.

E4: Compressor discharge temperature protection.

Solution: The system is blocked.

Compressor aging.

Poor heat dissipation of the external unit.

The pH fault of Gree air conditioner generally refers to the appearance of the word PH on the display screen of the indoor unit, which is a state protection mode of the air conditioner, indicating that the indoor temperature is too high or too low, and needs to be dealt with accordingly. Here's how to fix it:

1.Check if the indoor temperature is too high or too low, and adjust the temperature settings of the air conditioner.

2.Check whether the filter screen of the indoor unit of the air conditioner is clean and clean the filter.

3.Check whether the indoor unit of the air conditioner is blocked and clean up the blockage.

4.Check whether the indoor unit of the air conditioner is faulty, and if there is any reason to close the barrier, you need to contact professional maintenance personnel for maintenance.

5.If the above methods cannot solve the problem, it is recommended to contact the Gree empty car burial after-sales service center for maintenance.

Gree air conditioner shows that the PH is DC input voltage is too high, the specific cause of the fault needs professional service personnel to come to the door to detect and troubleshoot, please click on the self-service report or call Gree national unified after-sales service**4008365315 feedback your needs and suggestions.