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Reliable Communication: Utilizes standard 18-20 AWG thermostat wiring for the ABCD bus
Direct Modular Replacement: Specifically tailored for 25 Series Main Valves
Will this fix a code 31 or pressure switch stuck open error
maintaining performance across an operating temperature range of 0 to 175°F
Lennox 14A53 Pressure Switch L99H008 Reliable Communication: Utilizes standard 18-20The Lennox 14A53 Pressure Switch is a critical safety component designed for two stage gas furnaces, specifically engineered to monitor dual pressure thresholds of . 40" WC and . 70" WC. As a vital furnace draft inducer switch, it ensures the combustion blower is moving sufficient air to clear flue gases before ignition occurs. This dual stage pressure switch prevents hazardous operation by opening the electrical circuit if the static pressure falls
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