Newell Posted June 30 Share Posted June 30 I believe I have a Dixie Narco 501e not 100% sure. So it’s an older machine from 1985 I believe. I’m having issues getting it cold. It really only gets the cans to 55° and when I turn the level up on the thermostat, I notice there’s a big ice buildup on the top right corner. I have zero experience in anything related to this and I can send pictures if needed. Any help would be greatly appreciated Link to comment Share on other sites More sharing options...
tblake05 Posted June 30 Share Posted June 30 Check the door and delivery chute seals. Ensure the evap and condenser fans are both running. But it’s probably a little low on Freon. More than likely R12 being from 1985. Hope the machine didn’t cost too much. Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 It's low on freon. It needs to be charged by a certified vending repair tech. 1 Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 1 minute ago, AZVendor said: It's low on freon. It needs to be charged by a certified vending repair tech. Is there a specific type of Freon and is there a notable service tech in the Delmarva area as a recommendation? Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 1985 should be R134a but MP39 (also known as R401a) is drop in substitute. You can also get the model number off the compressor bell housing and look up the tech sheet for it which will tell you what oil is in it which dictates the freon it uses. If the compressor was ever replaced after new it would be 134a. And where the heck is Delmarva? Living in obscure named town you have to be more specific. If you are out in the boondocks somewhere then find an appliance repairman because you'll never find a vending repairman. Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 Just now, AZVendor said: 1985 should be R134a but MP39 (also known as R401a) is drop in substitute. You can also get the model number off the compressor bell housing and look up the tech sheet for it which will tell you what oil is in it which dictates the freon it uses. If the compressor was ever replaced after new it would be 134a. And where the heck is Delmarva? Living in obscure named town you have to be more specific. If you are out in the boondocks somewhere then find an appliance repairman because you'll never find a vending repairman. Okay. I’m specifically in lower Delaware. The peninsula is referred to as Delmarva haha. But okay I will definitely see what I can find out with this information. Thank you. Link to comment Share on other sites More sharing options...
Vendo Mike Posted June 30 Share Posted June 30 In 1985 was it R134 or R12? I thought R134 wasn't required until 1994 or thereabouts. Link to comment Share on other sites More sharing options...
orsd Posted June 30 Share Posted June 30 1985 is solid R12 territory. But lots of old machines have been retrofit with R134a. Should be markings on the deck that say what it is. Don’t go by the door tag. Also, 501Es were not made in 85. Might be a 501 or 501T, or might be a newer machine. Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 (edited) Yeah, wrong decade recollection on my part but I seriously doubt that there is still an R12 compressor in a machine that old. If it's really that old as mentioned for the beginning of the E models. Edited June 30 by AZVendor Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 1 minute ago, AZVendor said: Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 That's a DN 440 single price, so not an E model. If you have an E model cooling system in it then the freon lines would have been bent way out of shape to get that three-deep cooling deck into a two-deep machine. But if your machine is 3 cans deep then it's a 600T based on the height and the E-model deck would not be as poor a fit into it. Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 I can only do 2 cans deep Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 Then it's a DN 440 so I hope it's not a 501E cooling deck in it. Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 I am currently not home to take a pic but this is the best picture I have currently Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 Well, someone crammed a 3 deep unit in there. It is working so you'll be good with a recharge. Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 1 hour ago, AZVendor said: Well, someone crammed a 3 deep unit in there. It is working so you'll be good with a recharge. My last question is what kind of Freon should I recharge it with or will any kind work. Link to comment Share on other sites More sharing options...
AZVendor Posted June 30 Share Posted June 30 Get the model of the compressor off of the bell housing (dome) as I said before, because that will determine or confirm if it's 134a. It sounds like you want to try this yourself so since you can't get 401a yourself but can get 134a you need to verify that is what should be in it. You might have to pull the deck out of the machine to read the number off the plate that is welded to the dome. Link to comment Share on other sites More sharing options...
Newell Posted June 30 Author Share Posted June 30 Perfect thank you for your help guys. Link to comment Share on other sites More sharing options...
Newell Posted July 5 Author Share Posted July 5 On 6/30/2023 at 7:16 PM, AZVendor said: Get the model of the compressor off of the bell housing (dome) as I said before, because that will determine or confirm if it's 134a. It sounds like you want to try this yourself so since you can't get 401a yourself but can get 134a you need to verify that is what should be in it. You might have to pull the deck out of the machine to read the number off the plate that is welded to the dome. Is there a recommended PSI I should be shooting for, we read it at 40PSI and we got it up to 70~ish. And the machine is consistently staying at 63°. I am wondering if I should add more and/or how much. Link to comment Share on other sites More sharing options...
AZVendor Posted July 5 Share Posted July 5 If, and this is a big if, you are measuring the pressure on the low side, such as the crimped pigtail off of the compressor, then your low side pressure with the door closed, the compressor running and all fans running, should be 18-20 lbs if properly charged. If you measured it in this way then your valves are bad in the compressor and it has to be replaced. If you did all of this with the compressor not running then PLEASE STOP what you're doing because you have no clue what you are doing. You could end up injuring yourself or whoever "we" is. Here is a link to a very affordable replacement if that's what you need: https://www.dsvendinginc.com/p-9980-d1202-dn-240368440-refrigeration-unit-2-deep-column-new.aspx Link to comment Share on other sites More sharing options...
Newell Posted July 26 Author Share Posted July 26 I am still getting massive amounts of frost in the brand new one that you recommended to purchase. I’m assuming there’s something I’m missing or something I need to adjust? Link to comment Share on other sites More sharing options...
AZVendor Posted July 26 Share Posted July 26 Then you have an air leak into the cabinet. Was the unit brand new as indicated? If so we must assume it's fully charged for now. Look at your door gasket to see if it's torn or has missing pieces. The delivery flap to make sure it closes flush with the port. Then see if the T-handle snugs the door down. Don't crank the door down as tight as you can, just to a snug fit and then maybe a little more so there is no play in the door. Make sure you have mastic where the freon lines go up into the cabinet at the front of the tank. You need to pack around those lines with refrigeration mastic. The cabinet must fully drain with no standing water and the drain hose has to go into a drain pan. Make sure the thermostat is set to 3 1/2 from zero and that the capillary tube from it is doubled over and pushed into the tube behind the evaporator right side. Link to comment Share on other sites More sharing options...
Newell Posted July 26 Author Share Posted July 26 Okay I will work on all these things. Thank you I appreciate it Link to comment Share on other sites More sharing options...
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