Question about Dometic 57915531 Air Conditioner

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Why is the red ied flashing on my dometic 1600plus

Can't get the unit to start,it goes then stops & the light starts flashing

Posted by Anonymous on


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Posted on Jan 02, 2017

  • 1515 Answers

SOURCE: , Compressor start capaciter MFD value: roof top RV Dometic unit

Hi, I did some research and found nothing on the a/c unit. If I had the model and serial numbers from the condenser and compressor this would help me. This would be a run capacitor doing the start up, dropping out the start relay and keeping it running. If you have only one run capacitor and its a dual, will have 3- female spades coming from the top, with marks that say Fan, C for common, and Herm. for compressor. If it has only one capacitor with2- female terminals, several places to connect more than 2 wires, its a single cap. If it just runs the compressor, it could be a 370 volt x 20, 25, 30, 35, uf?? If its a dual it could be a 370 volt x 5 u f for the fan and the same , 20, through 35 u f or microfareds. The best way to find out is to take off the wires on it, and make sure you draw a diagram so you know they are right, and take it to a appliance parts house and let them check it to see what they are. Larger units can have a 440 volt x 20 to 35, 40, 45 and so on. Your unit is not that large, so it will only be 370 volts as far as voltage, but the u f value will need to be checked with a meter that will check the value of these and give you a number such as 4.99 u. f. and you will no its a 5 u f. It may be higher like 5.24 u.f.and that is OK. Make sure the capacitor has no oil leaking from it or its not swollen looking or distorted in anyway, it will be open or shorted out. Please let me know if I have been of help to you when you go to rate me, please be kind. I will be here if you need my help if you are having problems with the compressor not starting.
A/C & Heating Contractor
PS If this capacitor is black plastic and mounted on the side of the compressor, it will be a start, run capacitor with 2 wires. It snaps in a metal type holder you will need to take it out and check the terminal area it was connected to and remove it. If only 2 wires, it won't make a difference what side the leads hook to.

Posted on Jul 03, 2010

Testimonial: "This is exactually the information I was looking for. The paper label on the black plastic cse was faded, and I wasn't sure of the u f range this comperssor needed. Thanks, G"


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