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I can hear the refrigerant going through the lines.

We recently had a freon leak fixed and now we can hear the refrigerant going through the line in route to the air handler. It sounds like we have an open faucet and you can hear the wtaer running through the pipe. Any idea what causes this. I called the repair company was was told just to keep an eye on it and if it get worse, give them a call. We have had the unit for 9 years and never heard this sound before. Any help would be paareciated. Thank you.

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This is the way its suppose to sound, thats normal!

Posted on Sep 08, 2008

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Refrigeration flare fittings are 45° and are made with special tools. While there are 'washers' that can be inserted into the fitting when it's exposed, they are not that effective all the time. Remember that the pressure at the condenser part of the system can well exceed 300 psig.

The refrigerant, Genetron 407C, is the replacement for HFC-22. It has no 'replacement' per se.

It's my opinion that this is an issue for a reputable HVAC technician, and not a homeowner. To do the job properly, you would need a new filter/drier, flaring tool and torch if the line is not long enough for it to be re-flared and reconnected, vacuum pump and virgin refrigerant. I would bet that the location of the leak is such that the system is all but flat at this time, and you need a precisely measured amount of refrigerant to re-charge the system.

If you've not yet done so, TURN THE SYSTEM OFF to protect the compressor from damage.

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I talked with you last week on a possible restriction problem. The unit would go into a vacuum on suction side as soon as i started it. We both agreed it might be the expansion valve which i replaced. Now...


Hello, if the pressure is dropping that fast there is a leak on the low side, mighr be a schraeder valve or possibly around compressor. However whn charging freon both valves should be open or the freon will pump down in the condenser and the low side pressure will drop to 0

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How do i service the refrigerant


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I have a Ruud Achieve model UPKB 060 CAZ that has a line that keeps freezing up when the thermostat is set to go below 76 degrees. The freon was checked and some was added. Also, the air handler is in...


Normally when the suction line freezes which is the larger of the 2 lines, #1, its low on freon again and unit has a leak. They are sealed systems and they should never need freon only if they develop a leak. So, this we know. Also, if the air filter is dirty and plugged, and the evaporator coil at the air handler is dirty will cause icing of lines and coil.Not enough air flow across the coil due to a dirty filter. When you set your thermostat to go below 76 degrees, the unit will work harder to keep up to bring the temperature down and if you have a leak which you do, the suction line will ice up. A Ruud 060 is a 5 ton btu unit, good size. Who ever added freon should have done a leak check on it. I would recommend you calling them out as it is low again and do a complete leak check, add dye to the system or there are many ways to do this. If the leak is not found it will continue to ice up. By E.P.A. standards, they cant keep adding freon, they must find the leak.This is all about you can do, is check and make sure you have a return air filter and its clean, and if it continues to ice, have them find the leak, repair it, and re-charge it. I wish you the best.
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1 Answer

I have a small hole in my equalizer line on my carrier unit 38byc.All the freon has leaked out.how do I go about repairing this line?


Hello.
Federal epa laws prohibit you from fixing this problem.
1 you need to be cfc certified to buy freon.
2 you need to recover and store the remaining freon in the unit.
3 If you do not properly braze the hole you could do more damage to the compressor.


Sorry.call a certified service person.

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For my thesis: 5 condenser problems and 5 solutions


Problem number one.

condenser fan won't come on. solution check the capacitor if good ohm out the fan to see if it is bad. If bad replace fan motor with new one.

2. compressor will not come on. solution check the contactor to see if engaging this applies to problem 1 also. If engages check the capacitor on the herm side if it is bad replace. If good check compressor to see if the compressor is bad. Should it be bad replace compressor.

3. High head pressure not cooling properly dirty condenser coils. Clean coils. With hose and water.

4. Low head pressure frosting accruing on suction line. Check freon levels. Also check inside air filter for being dirty.

5. Condenser unit is failing to come on. solution check the power source check the contactor should the main power be bad check main breaker and replace any slow blow fuses that are bad. Should the contactor be bad check transformer to ensure 24 volts going to secondary side on contactor. Inspect the two wire going to outside unit condenser. replace any broken wire any bad transformer or bad contactor.

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