When a Gree air conditioner displays the “H7” error code, it is an indication that something is wrong with the compressor in the unit.
The compressor is responsible for moving around the refrigerant and air within your air conditioner (AC) and is extremely important.
If your Gree air conditioner is showing the error code “H7”, this indicates that there is a problem with the compressor, which a professional technician will have to take a look at. In the meantime, you can reset your unit and try to maintain your compressor.
What does the compressor do in an air conditioner?
You may realise that your air conditioner has many moving parts, which allow the unit to cool down the air in your space. One of the most critical of these components is the compressor.
The compressor is sometimes referred to as the heart or the workhorse of an air conditioner, because this component is responsible for moving the air into the refrigerant so that it can be cooled down, as well as for moving the hot refrigerant and cooling it down again.
Gree air conditioner error code H7
As a result of how important the compressor is in any air conditioner, most air conditioners cannot function correctly or at all if the compressor is not working as it should. Gree air conditioners are no exception to this rule.
If your Gree air conditioner is displaying an “H7” error code, this is an indication that there is a problem with the “compressor loss step protection” in Gree inverter air conditioners and a “compressor de-synchronized malfunction” in some Gree mini-split AC models.
When this error is displayed on your Gree air conditioner, your first step should be to find your owner’s manual to confirm what the “H7” error code means for your specific model.
The H7 error codes usually signify some kind of issue with the compressor of your unit and your air conditioner will not function as it should until this error message is cleared.
You should reset your Gree air conditioner before you take any other steps to try to clear this error code, just to ensure that the displayed error was not an error itself.
This is unfortunate, because compressor errors and troubleshooting should be done by professionals, since there are complex electrical systems at play and if you do not know what to look for and how to fix it, you can end up causing more damage, instead of actually fixing the issue.
However, there are some steps you can take by yourself to prevent compressor failure and to keep your compressor working optimally for longer.
How to reset your Gree air conditioner
When any error code prevents your Gree air conditioner from working as it should, you should always try to reset the unit to see if the “H7” error code disappears. If the system was malfunctioning when it displayed the “H7” error code, it will be cleared after the reset.
If you are lucky your Gree air conditioner model will have a “Reset” button on the remote control or display unit, which can be accessed with a small screwdriver.
However, if your model does not have this “Reset” button, you can reset the unit by turning it off at the breaker and waiting a few minutes before turning it back on again.
If the “H7” error code is still displayed even after the reset, you need to call a professional, as there is definitely something wrong with your compressor.
Why you should check your refrigerant levels and power to your compressor regularly
The most common issue when it comes to compressor failure is an issue with the power supply or with the refrigerant levels. This is why it is crucial that you check the wires around your compressor frequently to ensure that they are not loose or damaged.
It is also important that you check for refrigerant leaks regularly. When the refrigerant levels drop because of a leak, your compressor needs to work harder to move the refrigerant around the system and, in the long term, this can cause excessive wear and tear on the compressor and leave it damaged.
Why you should keep your coils clean and compressor well-oiled
When your Gree air conditioner has been running for a long time, dirt and dust may accumulate on the coils. You can clean these coils once in a season using a mould and mildew remover or a specialised coil cleaner with a toothbrush or a soft brush to keep your compressor from getting overworked.
You can also oil your compressor, using oil lubricant, but it is imperative that you do this correctly to avoid problems with other components.