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Pro tip: I was dead wrong about cleaning condenser coils on the regular
For 12 years I told folks that pulling a fridge to vacuum the coils was mostly a waste of time unless the thing was already running hot. Last Tuesday I got called to a house in Mesa where the fridge had been tripping the breaker every few days, and I almost ordered a new compressor before I looked at the back. The coils were packed solid with dog hair and about an inch of dust felt, so thick I had to scrape it off with a putty knife before the vacuum would even bite. After 40 minutes of cleaning and a $14 fan motor I had in the truck, the amp draw dropped from 2.1 down to 0.8 and the thing has run fine for eight days straight. What got me was the homeowner said her old tech told her the same thing I used to say, that coils do not matter on newer units. Now I am telling every tech I know to check those coils first, no matter what the unit looks like from the front. Anybody else get humbled by a job that turned out to be way simpler than you thought?
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