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Common Questions Why does my Reznor heater keep tripping the 136736 manual reset limit switch
Is this gasket reusable after a service call
the 143-16-005-00 ensures a precise fit for the upper diaphragm case assembly
which indicates the belt has worn thin and lost its wedge-effect grip
Engineered as a direct replacement for several legacy part numbers including Lennox 3447038
Trane CNT3785 Limit Switch Common Questions Why does myThe Trane CNT3785 Limit Switch is a heavy duty, OEM replacement part engineered for precise thermal regulation in commercial gas electric packaged units. This Single Pole Single Throw (SPST), normally closed (NC) switch is factory calibrated to open at 170F, effectively interrupting the burner circuit to prevent heat exchanger damage during high temperature events. Featuring an 11 inch insertion depth, the CNT3785 provides accurate sensing within the