Question about McCall Freezer 7-7045FT

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Can not get temp. below +10 f

Compressor change out 2yr. ago to Copeland #RS64c2E-CAA-959.. using R404A...approx. down time 24=hr. opened evap. compartment found ice building up of lower drain pan area. Compressor running all the time. door seals good,turned light off

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  • karl280 Jun 19, 2008

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What is your superheat and is defrost cycle working

Posted on Feb 28, 2009


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How can you keep a idylis chest freezer in garage during winter? temp below freezing

20 years ago guys used to put a 50 watt bulb down in the compressor area BUT the freezers today have been designed with the condenser in the freezer wall and don't retain any heat in the cold weather. Generally what you will experience is the temperature in the surrounding area drops to 10 degrees the freezer goes off and when the area begins to warm up the compressor tries to start with syrup for oil in its crankcase and cycles on its protector until it gets hot enough to warm the oil and allow it to run. Compressor life is shortened and the freezer temp is unstable. A self regulating crankcase heater could be purchased at a local supply house and wrapped around the compressor but I don't know if its ever been tried on a compressor that small or if you might overheat the compressor. ............Can you say garage heater? Its a matter of system design. All of the components for a commercial conversion are out there but a system that small is never considered. Sorry wish I could help more. Hope this helps and good luck.

Sep 30, 2014 | Freezers

1 Answer

I have a 404-A Low Temp Freezer Box that will not pull down to -10. Stops at a box temp of 18 degrees. I have changed the Compressor , Expansion Valve, Driers, Triple Evzcuated three times. You cannot...

sounds like you covered most all bases. without knowing pressures, I would look for a possible restriction. Since the TXV was replaced, are you sure you went back with OEM? If refrigerant was weighed in, was the drier an oversized one? It's rare but I have found some units that just don't cool right with the factory weigh in charge. You may want to try to charge by pressures. If it has a condensate pan with a hot gas line, be sure it is dry before trying as this effects the pressures. Good luck. Looking forward to hear about the fix.

Jul 04, 2014 | Continental Manufacturing Company...

1 Answer

How lpw of a temp. Can this freezer reach..and and if only 0 degree could the thermostat temp control be changed out so it could reach les than 0 temperatures like negative 20 or so?

There are different models made for holding different products. Yours has a 1/3 hp compressor for above 20 degs. It may have 0 on the thermostat and may well pull down that far, but -20 would be out of it's reach. Where as it's sister model is made to freeze to below zero has a 3/4 hp compressor. Larger compressor for the lower temps.

Sep 18, 2011 | Beverage-Air 44.9 cu. ft. / 1271 liter...

1 Answer

Copeland KAN 2- 0050-1AA Serial ct 91J 1067A

Is there a question here? You've identified a Copeland semi-hermetic 1/2 hp compressor that runs on 115 volts and was made in November of 1991

Jun 07, 2011 | Freezers

1 Answer

The starter is no longer available. I have found a generic starter here: Does this look like it will work? They have different...

I use this on a regular basis and have had no issues. I believe it will work. If I had some numbers from the compressor plus a brand name such as Copeland, Tecumsah, embraco, etc., I may be able to tell you more about the compressor HP.

Jul 17, 2017 | Haier 7 cu. ft. / 198 liter Chest Freezer...

1 Answer

Kenmore upright freezer quit freezing would work intermitantly and then quit cooling altogether, Approx 10 years old trouble shooting advise or most likely cause would be appreciated

Sorry to read about your problem. you can have many different problems.

Here are some areas to troubleshoot
1. Bad temp control
2. Failing compressor
3. Defective start cap
4. Defective overload protector
5. Defective control board

I suggest you call a service company. for compressor issues

I have tried to help you. Please help me, by Vote/Rate my response. Thanks.

If you live in the Denver area, I can help you.

4 Thumbs - Very Helpful
3 Thumbs - Helpful

Jan 04, 2011 | Kenmore 16.7 cu. ft. / 473 liter Upright...

1 Answer


these units are designed to run approx 85 percent of the time,they maintain temp rather than letting it get to a higher temp and then try to cool it down.they use a lot less energy to run the way they do long running times are normal

Oct 21, 2010 | Frigidaire 20.6 cu. ft. / 583 liter...

2 Answers

Working on a t49 freezer it wont go below 30 , change compressor couple months a go worked fine. Now i change dry and regas with 22oz 404 and wont go down , my high side is 200 my low side is 18 . clean...

Sounds like a restriction to me.
Recover the charge.
Pressurize the system with 350 pounds of nitrogen pressure through the high side.
Leave it pressurized for 15 minutes.
Release the pressure through the low side.
Replace the filter drier again.
Pull a 2 hour vacuum on high and low side.
Recharge liquid refrigerant on the high side.
Let the system sit idle for 30 minutes before starting.
Check the evaporator fan motor as well as the coils. Use a good coil cleaner on the e-coil.

Jul 24, 2010 | Freezers

3 Answers

Normal Operating pressure for true 2 door Freezer R404A Room Under 80 degrees F Box at -10 degrees F

The pressures depend, somewhat, on the expansion device,i.e. a TXV or Cap Tube. Take a pressure reading, then convert it to a temperature. The evap temp should be right at 10 colder than the box temp. Remember, heat flows to cold so the evap has to "Lead the Load" in order to cool. In many cases, the condensing pressure is usually ambient temp, plus 30, then convert to a pressure. These are general accepted practices that have been used for many years.

Hope this helps

Jul 11, 2009 | True 49 cu. ft. / 1388 liter Commercial...

1 Answer

Errattic temperatures in Freezer

Check out "" for manuals, diagrams, etc.
Cap tube systems are "critical charge systems". Can be difficult to get right. You did not mention pressures that you had. The split on the evap temp is almost always 10 degrees for freezers. If you want a -10 box, your evap needs to be -20. As a general rule of thumb, you want the high side to be "ambient +30". This seems to work most every time. Your problem might be operations related. Them leaving the door open alot and so on. It could also be a problem with the evap fan or the control to it. It could also be that since there had been a problem with the unit, they are now constantly checking it. Could be checking during a defrost cycle. When your box is at 0 degrees, your pressure should be about a -10 and no less that a -15 degree for the evap. You may have to babysit this thing and see how far it will pull down. You may have a weak compressor. Also, I have had many Hobart freezers fail due to dirty condensers. This causes the oil in cap tube systems to gel and clog up the cap tubes. The only fix is replacing the cap tube. There are alot of variables here so be patient, it's not going to be a quick fix. One last thing, since R404A can fractionate, you really need to pull the charge out and weigh in the correct charge with virgin refrigerant. This will eliminate 2 things. 1, it will ensure the correct amount of refrigerant and, 2 no chance of having a poor mixture of refrigerant in the system causing inconsistant readings and performance.
Hope this helps. And remember, cap tube systems are performance measured by the amount of superheat just prior to the unit making temp and cutting off.

Jan 07, 2009 | Victory Commercial Freezer VSF-3

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