newguy47591 Posted November 30, 2017 Share Posted November 30, 2017 Have a crane 784 frozen combo on location worked great for year and a half..well couple weeks ago it started raising temperatures where frozen part was hot. I pulled cover off and the line had ice on it solid. I traded machines with location took machine to hvac guy ...he looked at it and the fan wasnt working (had a bad wire connection..) fixed that shot some freon in to her and shes freezing. Now the issue... the compressor will NOT shut off, I set the temp to -3 also set it to defrost 4 times a day. Since the compressor runs it causes some ice back on the line but when it defrost it takes the ice off. Even tho I set the set point at -3 (we left it at repair shop running to keep an eye on it) it keeps running and the hvac guy says machine shows temp of -17 now and compressor still running. I have a feeling its going to run and run and just keep freezing. Hvac guy says he thinks its a board? Whats your thoughts? board? did i miss something in programming? thank you! Link to comment Share on other sites More sharing options...
newguy47591 Posted November 30, 2017 Author Share Posted November 30, 2017 I see this small board down by compressor..is this the one that controls temp and such? Link to comment Share on other sites More sharing options...
lacanteen Posted November 30, 2017 Share Posted November 30, 2017 Part number 4644008 TRIAC PCB. Link to comment Share on other sites More sharing options...
newguy47591 Posted December 1, 2017 Author Share Posted December 1, 2017 5 hours ago, lacanteen said: Part number 4644008 TRIAC PCB. Where can I find this part? I assume this part is the small board I showed in the picture? I also assume i just unplug wiring off old board..put new one in and hook up wires same place? thanks so much for your help! Link to comment Share on other sites More sharing options...
lacanteen Posted December 1, 2017 Share Posted December 1, 2017 Get it from Crane: 1-800-621-7278 It's going to set you back around $85 Link to comment Share on other sites More sharing options...
newguy47591 Posted December 8, 2017 Author Share Posted December 8, 2017 I recieved the part from crane.." Part number 4644008 TRIAC PCB. " Is this the same thing? The old board looks like it has a couple more chips on it then the new board? Maybe its just updated? Link to comment Share on other sites More sharing options...
AZVendor Posted December 8, 2017 Share Posted December 8, 2017 If everything fits on it then yes. Link to comment Share on other sites More sharing options...
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