How Does a Defrost Timer Work? | Appliance Repair Specialists

How Defrost Timers Work

I usually get to change one of these Paragon defrost timers a year, and yesterday it happened! . We found a walk-in cooler at a pizza place all frozen over and found the clock no longer ticking. When I pulled it out, you could see some of the cogs all worn down, no longer making contact to turn it . And whenever I post about these mechanical timers, I get comments about "how vintage" and "I haven't seen one of those in years!" But we literally learned to draw them in refrigeration school and I s