By swapping the leads at the connector

Its rugged construction withstands high temperatures

Always verify your wiring harness supports constant torque blower motors before installation

blocked vent pipe

Hydrolevel 45-480-1560 Low Water Cut-Off 340155-7026 By swapping the leads atHydrolevel 45 480 1560 is a solid state low water cut off designed for hydronic boiler systems requiring dependable burner protection and automatic shutdown in low water conditions. Operating on 120V, this control includes a 15 second time delay to help reduce nuisance trips caused by temporary fluctuations in water level. The built in Immersion Level Technology (ILT) continuously monitors conductivity to provide accurate and stable water level