MARS 16091 Potential Relay 319825-402 What causes a limit switch

What causes a limit switch like the HH680405 to trip

also identified by the cross-reference XMC0-323-EBBD

critical for preventing CO leakage

multi-stage HVAC systems

If cleaning the assembly does not resolve uneven combustion

MARS 16091 Potential Relay 319825-402 What causes a limit switchThe MARS 16091 Potential Relay is a heavy duty, voltage sensing motor starting relay engineered for 1 3 HP single phase compressor applications. Built as a direct OEM replacement relay for Bristol and Copeland systems, this component is critical for managing the transition between start and run cycles. It utilizes back electromotive force (BEMF) to precisely disconnect the start capacitor once the motor achieves approximately 75 80% of its rated