Carrier HH18HA192 Limit Switch 319852-301 The York S1-331-02977-000 2 Stage

The York S1-331-02977-000 2 Stage ECM Control Board Kit is an essential OEM replacement engineered for precise furnace sequence control and ECM blower motor modulation

Common Questions Is the 100208503 compatible with older RLY2400 models

though a wet cloth should be used to dissipate heat away from the pilot assembly and seals

Always cross-reference your compressor serial number with the manufacturer parts list to confirm this is the correct sealing set for your specific machine

This board is commonly found in ICP gas and electric furnaces

Carrier HH18HA192 Limit Switch 319852-301 The York S1-331-02977-000 2 StageThe Carrier HH18HA192 is a high limit, auto reset limit switch designed for critical thermal protection in heating applications. This genuine OEM Carrier replacement part is engineered to monitor heat exchanger temperatures and interrupt the electrical circuit if internal conditions exceed the safe operating threshold. With a strictly calibrated temperature range of 140 190F, it serves as a primary safety component to prevent equipment overheating and