One of the most important parts of any HVAC system is the condensate return pump. When the HVAC system is in cooling mode it will produce condensation. This condensation needs to be moved out of the system in order for it to operate properly. There are some situations in which a pump is needed to move the condensation out of the property. When this is the case you need to make sure that the system is clean and does not have any blockages.
Before you do anything with the condensate return system you need to check the area around the return pump to make sure there is no leak. If there is a pool of water near the pump or if there is dampness, you need to find the source of the leak so you can make the necessary repairs. Cleaning the pump will do nothing for the leak, so be sure to find the source first.
Once you find the source of the leak you can turn the power off to the pump. You should never try to disconnect the pump from the system without first turning off the power. You do not want to risk electrocution. Disconnect the PVC tubing that is connected to the reservoir. Make sure the pump does not run while the tube is disconnected.
The reservoir needs to be cleaned. This means you must rinse it with clean water to get rid of any algae, dirt, and debris that has collected. Now you can clean the drain line connections. This will need to be done using a bottlebrush or other small item that can get into cracks and crevices. Be sure to remove any dirt you find. This will help to prevent a clog in the future. You can also hit the pump with compressed air to blow away debris and dirt.