Preventing Wire Rubout on Every Service Call
4,931 views · Published 29 November 2016 · 2:09 · Indexed 12 October 2026
Channel: HVAC School · 2016 · Education
In this video, technician Jesse Claerbout shows us his method of preventing wire rubout on every service call. Over time, crankcase heater and high-voltage wires can rub against the copper. These can cause all sorts of problems, including the nightmare scenario of an electric short blowing out the copper and leading to refrigerant loss. On a normal maintenance call, we should check the wire location and look for the rubout potential. If there is rubout potential, we can insulate the copper line to prevent damage from wire rubouts. Of course, that doesn't address wire rubouts that have already caused damage, but line insulation is a great preventative measure. Read all the tech tips, take the quizzes and find our handy calculators at https://www.hvacrschool.com/.
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