When your solar inverter makes a clicking noise, it's usually nothing to worry about. This is a common problem that can often be solved quickly and easily.
There may be several reasons why your inverter may be clicking, including the inverter being overloaded, needing a reset, or a problem with the AC coupler. If a clicking sound is accompanied by a flashing light on the inverter, this may indicate something seriously wrong.
While solar inverter noise issues can be unpleasant, there are ways to resolve beeps, clicks, or other types of noise. Let’s explore the reasons behind these issues.
How to fix a noisy inverter?
A common cause of noise from an inverter is that the inverter is loaded beyond its capacity. Inverter noise is not only unpleasant, but often causes operational problems.
Therefore, it is wise to regularly check if your inverter is making noise, and if you notice noise, try to find out the source of the problem. Here are some ways to fix a noisy inverter:
Check battery status
When the inverter starts making noise, it's important to check the battery first. If the battery is in good condition, then the problem may be with the inverter itself.
So check the battery first. In some cases, a weak battery can produce a lot of noise, which can affect the performance of the inverter.
Maintain a dust-free environment
Inverters are sensitive electronic devices that need to operate in a dust-free environment to function properly. If there is too much dust or moisture in the surrounding air, the inverter will try to filter these particles to prevent them from entering the internal components, which can cause damage if left unchecked and maintained for too long.
Clean PCB board
If the inverter makes a lot of noise, the PCB board should be cleaned first. You can use a cotton swab soaked in isopropyl alcohol or a vacuum cleaner to remove dust from the circuit board.
Avoid using high-power equipment
Another way to fix a noisy inverter is to make sure no one is using high-power appliances in the home, such as microwaves, hair dryers, etc. These devices consume a lot of power and may cause the battery to overheat.
How to reduce inverter noise?
Noise from an inverter is a common problem, usually due to noise and vibration generated by the basic operation of the inverter.
Here are some ways to help reduce inverter noise:
Install the inverter correctly
It is very important to check whether the inverter is installed correctly. If not installed properly, it can produce a lot of noise due to vibration. Noise can be significantly reduced by placing the inverter on a solid surface and using washers between the inverter's mounting surface and the frame.
Check the fan
The inverter's built-in fan helps circulate air, keeping the unit cool and preventing overheating. Dust or debris inside the fan housing can increase noise levels and cause damage. Check the fan regularly for wear or damage and replace if necessary.
WARNING: Never operate the inverter without the fan installed. If the fan is missing or damaged, it may cause the inverter to overheat and be damaged.
Clean the inverter regularly
Clean the inverter regularly with a soft brush to prevent dirt from adhering to the internal components, which can cause them to vibrate more frequently while operating, thus creating more noise.
NOTE: When cleaning the inverter, please disconnect the power cord and turn off the switch to ensure there is no power to the device.
Clean the motor unit
The motor unit is a common source of noise in inverters. Accumulation of dust and other foreign matter on the motor windings often causes a loud buzzing sound. To clean the motor, remove the cable connectors, blow away any loose particles with an air compressor, and allow the motor to cool before reinstalling the cables.
NOTE: Never use water or other liquids to clean the inverter. Any moisture that enters the device may cause damage.
Cable inspection
The inverter transmits power from the solar panels through cables, and these cables can become damaged over time, causing voltage drops or short circuits that can cause the inverter to emit a burning smell or smoke. If you suspect cable damage, consider replacing it as soon as possible to avoid further damage and potential danger.
How to identify whether inverter noise is dangerous
It can be difficult to tell whether the noise coming from your inverter is dangerous. Some sounds are normal, while other sounds may indicate a malfunction.
If the noise comes from inside the inverter, it is usually normal. If the noise is coming from outside, it could be a sign of malfunction.
Here are some common sounds and their meanings:
Humming or humming noise: This is usually caused by the running of the fan inside the inverter and is normal. You shouldn't hear this noise when there is no load on the system.
Clicking/popping sounds: This may also be caused by the fan running inside the inverter, which is normal if it is only heard when the system is unloaded. If it occurs when the system is under load, overheating may be caused by insufficient ventilation in the attic or crawl space where the solar panels are installed.
Final Advice
Clicking sounds from a solar inverter are usually due to loose wires. If all other possible causes have been ruled out, the wire connections should be checked and tightened if necessary. If the problem persists and you can't fix it on your own, you should contact a solar technician for an inspection.If you need to replace your solar inverter, you can check out our range of power inverters.
