Lennox 63W36 Circuit Board 320734-701 000 ohms when functional—and triggers

000 ohms when functional—and triggers a flammable vapor sensor lockout error (often a 7-blink code) if the circuit is compromised or vapors are present

designed to withstand the high-temperature environment of a commercial mechanical room

it is rated for up to 15A at 125/250VAC

The Sensus 243-12-1 1/2 gas regulator is a heavy-duty commercial gas pressure regulator engineered for precision control in large residential

0131M00003PS

Lennox 63W36 Circuit Board 320734-701 000 ohms when functional—and triggersThe Lennox 63W36 Circuit Board serves as the primary fan motor control board for high efficiency residential systems, specifically engineered for XC17 air conditioners and XP17 XP21 heat pump units. This genuine Lennox OEM replacement part (Model 605953 01) is critical for managing blower cycles, fan speed modulation, and system communication. As a veteran grade HVAC control board replacement, it monitors safety switches and temperature sensors to