For professionals troubleshooting low suction pressure or erratic superheat readings

it is compatible with Arcoaire

allowing you to bypass the schedule for maintenance or testing without losing your programmed events

When replacing a worn-out or cracked bracket

74" WC setpoint

Lennox 13L09 Wiring Harness L99H008 For professionals troubleshooting low suctionThe Lennox 13L09 Wiring Harness is a heavy duty, field ready compressor wiring harness engineered to maintain critical power and signal paths between the compressor and the control board. For contractors dealing with diagnostic ground faults or high resistance heat damage at the terminals, this OEM Lennox replacement part ensures a secure, low impedance connection that prevents voltage drops and premature compressor failure. This harness is designed