Now this is a story of one of our tech’s recalls. Our records say that he replaced the main control board WPW10336511and it seemed like the fridge started working with no issues. But the customer called us again around three weeks later complaining that the same issue has started again. The tech who took care of this order was confused, to say the least. He went back to run a full diagnostic all over again. The heating element was working perfectly. But the thermistor WPW10383615 was acting weird. At around room temperature it should be showing 5kOhms, and 22.7kOhms when freezing. But when our tech froze the thermistor with SuperFreeze Liquid, the resistance started going up to 160kOhm and then suddenly drop all the way down to 2kOhms. The tech ran this test on the thermistor WPW10383615 a couple more times, with exactly the same results every single time. When he came back with a new thermistor WPW10383615, he decided to double check his diagnostic and ran the test again, both on the new thermistor and the old one. The new thermistor was behaving ideally, showing 5kOhms at room temperature and 22.7kOhms when frozen. The old one was still showing defective behavior, while it was showing the correct resistance at room temperature at around 5kOhms, when frozen, the resistance was going up very slowly but would not be reaching the proper value of 22.7kOhms. That’s why the compressor was frosting the evaporator coil. Once the old thermistor WPW10383615 was replaced, the Whirlpool WRF560SEYM00 refrigerator started working properly again. Sometimes a resolution to the problem is not as evident as it seems to be initially.
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This customer’s Nu-Vu UB-5/10 Bread Oven stopped working. At first glance, everything seemed to be working fine, but with a more thorough check the tech noticed that the control board was not getting 208V power. He had to pull up the the whole power supply diagram before doing any further work. Once he was familiar with that, he started checking the wires and was finally able to find the disconnection and fix it. Most likely, one of the wires was simply defective.
We got a call for commercial order from the Indian Street Cafe. They needed urgent help with their TurboAir fridge that had stopped working properly. During the diagnostic our technician noticed a big chunk of ice that has accumulated on the evaporator coil. Apparently the seal of the fridge was not airtight anymore. Replacing the door gaskets and the defrost sensor fixed the defrosting problem of TurboAir M3R47-2 fridge.
Whenever the customer was trying to get some water from the water dispenser of his GE fridge, there was scary loud humming noise which seemed to be coming from where the water filter is connected. Our tech decided to try replacing the Refrigerator Water Filter Head Assembly Part #: WR17X11894 - and it fixed the problem. With the new water filter assembly the humming noise during water dispensing has stopped.