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Post by shoe6674 on Dec 13, 2022 7:25:35 GMT
Hello All, I recently was given this DR2 which showed up to my house flat on its back, and not properly secured (top had separated on its own). Based off of what I’ve read here and have found in the manual, the start resistor was fried and the overload had burnt through. I plan to pull the top and controller to test the resistance in the next few days, but am looking for guidance on replacements for the already known bad parts. I realize the windings are likely shot, but I am willing to do what I can to get this going again. Thank You for any and all help with this! Jason     |
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Post by ckfan on Dec 13, 2022 17:36:04 GMT
It sounds like you are on the right track. As far as the starting resistor goes, I am not sure to be honest. I don’t know of anyone that has had to replace one in a control. However, the DR manual does list resistances for the various starting resistors that were used. I would start there to see what type of resistor you will need. It does look like the series start coil is burnt. It is black vs the normal copper color. That doesn’t bode well for the compressor motor. It sounds like you are already prepared for the possibility of a burnt motor though. These early DRs were very prone to motor burn outs as they age. This is a very early form D example with the icing unit badge, tall control, and oven or pig evaporator. Likely 1927 or 28. Definitely worth saving. One other thing to check is the crankcase heater. With the control off, if you measure resistance between the line cord you should get about 1000 ohms. If you don’t, that means the heater is open and will need to be replaced. In order to prevent damage and liquid refrigerant in the oil, the heater has to be operational.
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Post by shoe6674 on Dec 14, 2022 2:06:14 GMT
Thank you for the insight, l will hopefully have some time this weekend to get the top off to see what’s up.
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Post by turbokinetic on Dec 14, 2022 15:35:43 GMT
Thank you for the insight, l will hopefully have some time this weekend to get the top off to see what’s up. Nice, hope you are able to get this up and going soon. I believe that the signs you are seeing; with the melted overload heater, bode very poorly for the compressor motor winding. However, that will have to be properly tested, as Ray explained earlier. I think this same Monitor Top was discussed here previously, because I seem to remember the color scheme since it's unusual. Sincerely, David |
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