Repair Roof Top Unit - RTU replacing contactors

Commercial Cooling replacing compressor and blower motor contactors. Customer calling upon unit cooling not running find out that contactor got stuck won't close. Contactors are electrical components that control the flow of electricity to the compressor and blower motor. Over time, these contactors can wear out due to frequent use and exposure to environmental factors. Some general steps involved in replacing compressor and blower motor contactors. Before starting any work on the cooling system, ensure that the power to the unit is turned off. This usually involves shutting off the power at the circuit breaker or disconnect switch.

Locate the Contactors: The compressor and blower motor contactors are typically located in the electrical control panel of the cooling system. Open the panel to access the contactors.

Identify the Contacts: The contactors will have multiple sets of contacts. Identify the contacts that are responsible for controlling the power to the compressor and blower motor. They may be labeled or color-coded for easy identification.

Remove the Old Contactors: Disconnect the wires connected to the old contactors. This may require using a screwdriver or wrench to loosen the terminal screws. Once the wires are disconnected, remove the old contactors from the mounting bracket.

Install the New Contactors: Place the new contactors onto the mounting bracket in the same orientation as the old ones. Connect the wires to the appropriate terminals on the new contactors and tighten the terminal screws to secure the connections.

Test the Operation: Before closing the electrical control panel, it's important to test the operation of the new contactors. Turn the power back on and activate the cooling system. Ensure that the compressor and blower motor are running smoothly and that there are no unusual sounds or vibrations.

Close the Panel: Once the operation has been verified, close the electrical control panel and secure it in place.

Final Checks: Perform a final visual inspection to make sure all connections are secure and there are no loose wires. Double-check that the power is turned off before leaving the work area.

Record Keeping: It's a good practice to keep records of when maintenance tasks like contactor replacement are performed. This can help track the service history of the cooling system and identify any patterns of wear or failure.

Happy customer have their restaurant up and running.

Budget: 850

Location: Minneapolis, MN