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It opens the electrical circuit when temperatures exceed a safe limit to protect the system
such as a cracked heat exchanger or flue blockage
Common Questions: Can this relay replace a specific OEM potential relay
ensuring the heater activates when the compressor is idle
MARS 33265 Sequencer It opens the electrical circuitWhen you're out on a service call for an electric furnace or heat pump air handler, you need a MARS 33265 Sequencer that provides reliable staged heating. This 240V DPST Normally Open Sequencer is a direct service replacement for many OEM HVAC sequencers, designed to manage the activation of heating elements and blower motors to prevent circuit overloads during the initial startup. The MARS 33265 utilizes a solid state PTC (Positive Temperature