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Ok so in this case the most likely reason the relay burnt out is because the compressor is tight and having problems starting so it burnt relay. Need to determine what LRA (locked rotor amps) is by looking on data plate on compressor and see if amp draw is at or very near the LRA spec. if it is the compressor is bad
Are you looking to replace your Delfield hinge? With model and serial we can help you ID the correct OEM replacement hinge and even offer the hinge below list. We also sell Kason & generic reach in hinges on our site http://www.coolergaskets.com/reach-in-hinges/
Let us know if we can help!
Replacing your gaskets on your Delfield unit is a simple process. If you can locate your model and serial # on the inside data plate just give us a call or shoot an email and we'll identify the gasket you need. If you cannot locate that info then we offer a custom made gasket option: http://www.coolergaskets.com/custom-made-gaskets/
can not immediately locate manual.
If this unit is a cooler, check this:
Anything that can effect air flow. Fans not running or running in wrong direction.
Too much product in unit.
Thermostat set too low or stickes and unit does not shut off unit.
Possibly has a defrost timer. Most coolers do not but some do. Look for one and see if it is working. Make a mark on the face and wait 15 minutes to see if it moves.
Drain pan clogged.
Doors not closing or seals not sealing.
How was this unit originally equipped? TXV? Use only a TXV OF CORRECT size. In refrigeration if you have a 6000btu rating you do not use a 1/2 ton valve you use a 1/4 ton (3000btuh) at most and would need consulting with an engineer to arrive at the correct valve.
SO was the TXV the other fellow replaced an OEM valve? If not this may be the problem as most TXV's off the shelf are designed for walk-in refrigeration Not Reach ins. An OEM valve may be the trouble here.
Now not to stress the TXV but also the compressor (what was the original model?) Make sure it is designed for the particular heat range and size for this application. As you probably know 1 size compressor designs for AC will not be OK on Refrigeration at same BTU rating.
Call Del field and verify what they are using or recommending for this unit. model and Seal no required and the existing model and SN.
Also to my knowledge a receiver is not required and in fact will only add to your trouble. Receivers are for changes (wide differences) in condensing temperature and pressure. Never saw an application for one with a condenser designed from factory for indoor use with either type of expansion device.
If you need Del fileds number email me at firstname.lastname@example.org and in th subject line enter delfield?.
You can clean the condenser while it is running or you can unplug unit . most of the time you can use a nylon brush to brush off the condenser. If it has not been cleaned in a while you may need some sort of compressed air to blow through it. If units are in restaurant and by fryers or have greasy buildup on them you will need to unplug unit and spray some degreaser on it then rinse with water. It is important to clean the condenser, the part with fins and is located by compressor, because a dirty condenser will shorten the life of the compressor.