TheCandyLady Posted March 12, 2021 Share Posted March 12, 2021 Any idea what could cause this machine to freeze the way it did. I adjusted the temp after unplugging and defrosting it??? I assumed the door wasn’t closed properly, but then it did the same thing again the next day. It’s a Royal GII (RVCC 390-9). Link to comment Share on other sites More sharing options...
AZVendor Posted March 12, 2021 Share Posted March 12, 2021 That would be a bad temperature sensor. You will need to replace it. PN 822030 1 Link to comment Share on other sites More sharing options...
NYCandyMaN Posted March 12, 2021 Share Posted March 12, 2021 check your thermostat, it may be turned up too much, don't forget diet sodas will pop before reaching freezing temp. 1 Link to comment Share on other sites More sharing options...
AZVendor Posted March 12, 2021 Share Posted March 12, 2021 It doesn't have a thermostat, it has a computer controlled sensor. If, by chance, someone has frankensteined it with a thermostat then it needs to have the temperature sensor properly installed so it will work correctly. Link to comment Share on other sites More sharing options...
Vendo Mike Posted March 12, 2021 Share Posted March 12, 2021 You should be able to test the temp sensor by displaying the current temp reading and see if it's accurate. After that, warm the sensor with your hand and check again. If the sensor reacts and gradually displays a rising temps confirming a good or bad temp sensor. At that point, you have to start looking at the compressor relay circuit. Does the compressor continue to run with the door open? If so, that would be a sign that the comp relay is either always engaged ( board failure ) or welded itself closed ( relay failure ) supplying power regardless of the temp reading. 1 Link to comment Share on other sites More sharing options...
TheCandyLady Posted March 12, 2021 Author Share Posted March 12, 2021 Thanks so much for the help guys. I ordered the temp sensor from Royal, $63 before shipping. It was also in ebay for $90. Do you all know of any guides or videos that show/explain how to change the sensor? Link to comment Share on other sites More sharing options...
NYCandyMaN Posted March 13, 2021 Share Posted March 13, 2021 On 3/12/2021 at 12:59 AM, AZVendor said: It doesn't have a thermostat, it has a computer controlled sensor. If, by chance, someone has frankensteined it with a thermostat then it needs to have the temperature sensor properly installed so it will work correctly. i am guessing/assuming that the G3 machine does/does not have a thermostat? Link to comment Share on other sites More sharing options...
AZVendor Posted March 13, 2021 Share Posted March 13, 2021 No. All electronic Royals have temperature sensors from the factory. Some doofus's have put thermostates in them but they can cause cooling problems if not done correctly, and I've seen some of those. Link to comment Share on other sites More sharing options...
TheCandyLady Posted March 16, 2021 Author Share Posted March 16, 2021 @AZVendor would you be able to share with me step by step on how to change the temp sensor or even direct me to instructions? I can’t find anything online on it. I’ve heard it’s fairly easy, but I don’t even know where to start. Thanks for all of your help and insight. Link to comment Share on other sites More sharing options...
AZVendor Posted March 17, 2021 Share Posted March 17, 2021 You will find the temp sensor mounted to the evaporator hood in the rear of the machine. It might also be mounted to the back of the cabinet next to or above the evaporator. The sensor is usually riveted on so you will have to drill out the rivets to remove it. Follow the harness all the way back to the logic board so you know which connector to take off the board. The drop sensor and temp sensor look alike so you want to make sure you are working with the temp sensor only. Don't damage or cut the insulation on the new sensor or you will render it useless. 1 Link to comment Share on other sites More sharing options...
NYCandyMaN Posted March 17, 2021 Share Posted March 17, 2021 9 hours ago, TheCandyLady said: @AZVendor would you be able to share with me step by step on how to change the temp sensor or even direct me to instructions? I can’t find anything online on it. I’ve heard it’s fairly easy, but I don’t even know where to start. Thanks for all of your help and insight. if you're in the NY NJ CT PA area, i might be able to stop by for installation, you will pay for gas and tolls, ill have the fun with the machine 😜 Link to comment Share on other sites More sharing options...
TheCandyLady Posted March 19, 2021 Author Share Posted March 19, 2021 On 3/17/2021 at 2:04 AM, NYCandyMan said: if you're in the NY NJ CT PA area, i might be able to stop by for installation, you will pay for gas and tolls, ill have the fun with the machine 😜 @NYCandyMan if you were in ATL I’d take you up on that and leave you tip lol! Link to comment Share on other sites More sharing options...
NYCandyMaN Posted March 19, 2021 Share Posted March 19, 2021 1 hour ago, TheCandyLady said: @NYCandyMan if you were in ATL I’d take you up on that and leave you tip lol! who know, i might pass by for the tip 😁 Link to comment Share on other sites More sharing options...
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