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TIL that keeping a $12 infrared thermometer in my van cut my fridge diagnostic calls from 45 minutes down to about 10
Six months ago I was still pulling out my multimeter and guessing at thermistor readings on every Whirlpool fridge call, but now I just point the gun at the evaporator and condenser coils and know in seconds whether it's a sealed system problem or just a bad defrost heater, so what's the one cheap tool that quietly changed how you run your route?
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