Diagnose the symptom
A failed-looking part may be the result of another system problem. Describe the symptom and any fault message so the system can be assessed before deciding what needs replacing.
Homeowner service guide
MARS HVAC parts guide.
Have a question about a MARS component in your HVAC system? Start with the equipment model and the part information. Compatibility and the cause of the problem need to be established before choosing a replacement.
Know your equipment
MARS replacement parts and homeowner resources
MARS product resources are now available through RectorSeal. The MARS range includes HVAC and electrical replacement products, with Amrad capacitor resources also presented in the official portfolio. Matching a motor or capacitor involves the actual application and ratings, not simply the manufacturer name printed on the failed component. Availability and suitability should be confirmed for the specific equipment.
Provide the HVAC unit model and any previous repair documentation. If you already have a part number from a technician, include it with your request rather than removing a component to inspect it.
Parts to identify: HVAC electrical products, motors, capacitors, and related replacement components.
Manufacturer resources
Use the official information for your model.
Check the equipment model, serial number, installation date, and registration documents before reviewing coverage. A manufacturer link does not establish that a repair, replacement part, or labor charge is covered. Confirm the applicable terms for your equipment.
For manufacturer support, use the company contact resource below. Have your equipment or component model, serial number, purchase or installation date, and proof of purchase ready. Coverage and claims procedures depend on the applicable product terms.
Heating and cooling help for homeowners