An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert who has answered 1,000 questions.
Re: compressor does not come on
First check that this is not an electrical fault. If it is an electrical compressor, check the supply and measure ohm value of the coils.
If the compressor is running, but not cooling, you have probably run out of gas.
Near or on the compressor will be a redundant pipe. It should have a valve on it, but sometimes for cheapness it's just cut off after filling.
There needs to be a valve fitted on the system for it to be refilled. You may have to buy one and braze it on the pipe yourself.
After this first hurdle, most vehicle spares suppliers now have kits for replacing vehicle refrigerant - complete with hose, pressure gauge etc . Just fill a little, and check for leaks, then fill up and test.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Knocking or hammering at the compressor is indicative of liquid refrigerant in the compressor. The compressor can't compress liquid. You'll need to call someone out to possibly evacuate and recharge the unit to remove the liquid in the compressor
The compressor needs to run, does it run? If it runs and the outdoor radiator is not producing heat, then it may be low on refrigerant. The compressor refrigerant lines, the skinny gets hot and the thick line gets cold under normal operation.
To recharge the unit, it needs to be leak checked and repair any leaks found, then recharged. The refrigerant type used needs to be known, a manifold gage set is used to diagnose and recharge.
If you have a window unit, you should have it serviced or replaced.
Unplug the a/c and check the control panel of your a/c. Unscrew the control panel to expose the wires and terminal lugs.Check for lose wires or terminal lugs or defects from the compressor capacitor. If all are OK try adjusting the thermostat switch to make the contacts work. If the capacitor is damage replace it and replace any damage terminal lug. If the compressor still does not work, check the overload and the compressor resistance. If overload is open, replace it and check compressor amperage. If the compressor amperage is high, you have to replace the compressor, vacuum, and recharge freon.
There are 5 basic, but solvable reason for what you described. None of them are related to the compressor. Please pay particular attention to numbers 1& 2. 1. The humidity extraction level is set to HIGH. Lower it to 32-35%. 2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the Unit, before removing to inspect & clean it, if necessary. If washed, allow filter to completely dry before reinstalling. DO NOT operate the unit without the filter.
3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.
4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.
5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures (Unless, you have a Low Temp Unit). This applies mainly to where the air
temperature at floor level is colder than at shoulder level in basement applications. Raising the unit up off the floor, onto a sturdy table, counter top, etc, that can handle the weight of the unit, plus a full tank of water, will usually resolve this problem.
none of the above solves the problem, it may be a case of the
compressor needs to be recharged with refrigerant gas. This usually occur in units that are
5 years old or older. It's rare in a unit younger than that. But, if it hasn't been well maintained, it
Hope this helped you to troubleshoot & solve the problem. Please let me know.
You changed the compressor?? Why ??? These models do not normally have problems with this. I am conversant with most of the LS series and these have capacitor start compressors, which fail all the time. Generally all models have either a 45 /6 uf or a 50 /6 uf capacitor. If this fails, the compressor wont start, thus a no heat, no cool problem. If you have changed the compressor and made sure it is actually running, what is the operating pressure?? Suction side should be around 0 to -5 degrees c. Perhaps there isnt any gas in the system??
I assume by doing such a repair you are licensed to do so and have all the proper equipment to recharge the system ???
Before you had recharged your unit has the condition of the compressor analysed ? what is the condition of the condenser coils and the coiling coils.? Did you clean the filters? was the correct gas used for charging? Now go back to acess the fault that could have resulted in poor cooling. Dripping is indication of good cooling/ heat exchange , maybe this unit is working bettter. Since I am not aware of the age of the units, it becomes difficult to comment.
However please check with a clamp tester for the compressor motor current intake, failure of capacitor for low speed. blowing of fans, clean and check. Hope my advice helps you to recheck. Good day