Sub-Zero Refrigerator Repair, Not Cooling Issue With Freon Leak, Drawer Type Sub-Zero 700 Series.

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Sub-Zero Refrigerator model number 700BR had a leak in a sealed system and the refrigerator was not cooling. This video is about how to replace the evaporator coil with a heat exchanger and filter dryer in a Sub-Zero drawer-type refrigerator. Sub-Zero uses the 700 series as a drawer-type refrigerator, freezer, or beverage holder. We are a small family-owned appliance repair servicer in the Austin area and we repair Sub-Zero appliances. With any question on how to fix Sub-Zero refrigerators with no cooling issues, leaking water issues, or ice maker issues please feel free to write your question in a comment section and I will get back to you shortly with the answer.
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20 май 2024

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Комментарии : 13

@randomrefrigeration4564 Месяц назад

It’s was more likely restricted and not low Previous repairs was made and if nitrogen isn’t purged while brazing you run the high risk of clogging up that cap tube. Cap tube restriction will cause - psi suction it’s best if it’s already tapped to weigh in the name plate charge. If it starts cooling and pressures are normal it’s was low If it is restricted it will remain in a vacuum But I do agree with his repair by changing the coil and line set. He covered all bases on the low side However R134A is infamous for cooking the oil and restricting cap tubes Good luck thanks for the video Omg I just seen your wacky vacuum pump set up. That’s ridiculous it will not pull out moisture what a joke buy a vacuum pump

@acrepaircenter9961 Месяц назад

It was low on Freon. I repair so many of subzeros. Restricted kinda still has Freon in the system. This one didn’t. And compressor pump will do the job. I think, learned from other respectable techs in life and on the internet, you pull -28 psi it should be ok. Mine does -28psi. What else do you need. Just get a newer compressor and don’t be afraid of doing extra steps with the repair.

@randomrefrigeration4564 Месяц назад

A vacuum pump has 2 stages for pulling deep vacuums PSI has nothing to do with a vacuum that’s pull rate only Microns is what you have to observe Sub zero would not approve your evacuation procedure Get a micron gauge and connect it to your set up Moisture is your enemy I really like Sub Zero it’s built to more a commercial standard and consumers certainly pay a lot for it. So professional service with the correct tools is to be expected

@allaustinrepairs2054 18 дней назад

You can use vacuum pressure unit conversion and compare PSI to Microns. The regular compressor can be used to vacuum the system. But it has to be a dedicated compressor for vacuum purposes since with all the contaminations from the systems you recover freon, and the compressor cannot be installed in the future on any new refrigerators. It has to be only for vacuuming purposes. This is not me, but it was approved by tech support at Viking as well. With Sub-Zero I cleared this question a while ago. I just had a chance to call Viking the other day and asked this question. Regarding the moisture, it will be anyway in the system, we have to install a new filter dryer, and the filter dryer must be replaced with any sealed system repair, no matter the age of the unit.

@RitinPali 8 дней назад

I have a double door Hisense and a side by side Haier. Both around 1.5yrs old and with r600a and inverter compressors. Both failed in the current Heat-wave. Gas leaked. Am trying to fix the double-door Hisense. Used an old compressor for the vacuum. But the running pressure was -20 psi. Ambient temp is 35 c So went and bought a vacuum pump 2cfm Did a vacuum for 25mins and refilled the gas by psi. Filled in upto 35psi standing pressure and started it, after 2hrs The running pressure is again -20psi 😢 I think it might be a restriction How to confirm?

@acrepaircenter9961 8 дней назад

@@RitinPali Hi. Yes, it could be a restriction. Or it could be a freon leak. You need to get a pressure reading on the high side where the filter dryer is. If it's also -20 psi on the high side, you have an internal leak. Sealed systems have up to 5 years warranty on parts so I recommend calling the manufacturer and letting the repair tech do the job. But you have to pay for the labor which is expensive for this type of repairs

@SqueakyHinge Месяц назад

R134a is to be charged as a liquid, I believe.

@acrepaircenter9961 Месяц назад

Typically I turn the tank upside down, then the Freon will be in a liquid form. Use my weight I charge exactly how much it needs Freon. Shut the tank off and then turn the unit on. But on this video I realized my weight doesn’t work and I charged the Freon without weight and it takes a very long time. When tank stays straight, the Freon grows as a gas, so I used gas. I didn’t want to overcharge it. I don’t like charging this way.

@randomrefrigeration4564 Месяц назад

R-134A is not a blended refrigerant so it will not fractionate because 134 is only 134A May be charged liquid or vapor. All 400 series gases or blends and have to be charged liquid

@acrepaircenter9961 Месяц назад

@@randomrefrigeration4564 for 134a it doesn’t matter you charge liquid or gas. Even with the tech support of subzero I spoke about it. Nothing wrong with either way. Liquid is by weight and it’s faster way to charge.

@randomrefrigeration4564 Месяц назад

@@acrepaircenter9961 that’s exactly what I said in my comment liquid or vapor doesn’t matter with 134A it’s not a blend I’m sorry you refrigeration knowledge is very superficial