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Furnace Roll Out Limit Switch Replaces Lennox Armstrong Ducane L350F R20017402 20017402

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Description

This is a Brand New Lennox/Armstrong Ducane Furnace Roll Out Limit Switch rated at 350 Degrees (L350F). Replacement for old Lennox/Armstrong/Ducane part #s R20017402 & 20017402. Thanks for looking and good luck!
Function:
A limit switch is a safety device designed to shut down a piece of equipment. Limits have a set point, which is in some cases, adjustable. The set point prevents the temperature or pressure from exceeding the rating of the switch.
Replaces Old Part #s:
R20017402 20017402
Repair Difficulty Level:
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1 Review

  • 4
    connector & prongs

    Posted by Unknown on 16th Apr 2018 10:03

    It was satisfied the correct part (manual) and numbers matched the old part. Although it's correct part the prongs have changed they're wider. The wires from my furnace one single yellow wire with two connectors and red wire with single connector harnessed within furnace. I removed wires &didn't remember which wire goes where. Furnace starts lights heats and within minutes pops safety part feature. Iam not an hvac guy so screws and fuses is as far as I go .

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