Lennox 91J88 Control Board 320734-701 Why choose magnesium over aluminum

Why choose magnesium over aluminum for A

Frequent tripping usually indicates a grounded compressor

Variable Weighted Arm: Features an adjustable counterweight for precise field calibration to match specific blower motor curves and duct configurations

the 2890099 pressure switch offers a simplified installation protocol by eliminating the need for manual field calibration

Designed to run on both 50/60Hz

Lennox 91J88 Control Board 320734-701 Why choose magnesium over aluminumAs a seasoned technician, you know that a failing Lennox 91J88 Control Board is often the culprit behind intermittent ignition or irregular blower cycles. This ICM gas furnace control board is a high performance OEM replacement part designed to manage critical sequences, including ignitor warm up, gas valve timing, and inducer motor speed. Engineered for 120V and 24V applications, it integrates microprocessor based logic to ensure precise flame