An a/c tech removed the crankcase heater from my unit (AOU18R1) and doesn't remember how it was installed. How is the heater supposed to be installed and where is it supposed to be electrically connected?
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Condenser motors all have oil in them. If the unit is overcharged with refrigerant and does not have an accumulator, (cylindrical canister) the excess refrigerant can force oil out of the compressor as the compressor tries to move liquid throughout the system. you will notice this as the system will not cool effectively. Also if the compressor sump heater has failed (especially true for Tranes). The refrigerant will settle into the crankcase of the compressor and force oil into the linesets upon startup. This is the reason you should allow at least 20 minutes for the sump heater to warm up the crankcase when installing a new outdoor condenser on a new system install. Hope this helps.
So far that sounds like the problem. Same situation I had with a new unit. The compressor went south. Changing it was a matter of a half hours work. If it has a warranty though, it may be worth the time and effort to call a pro. They will help validate your claim against the warranty. And if they are the fellas that sold the unit to you, well you may get the labor for free as well. If you do hit it your self, remember to have R-134 refrigerant on hand with the proper fittings. The compressor itself has only about 4 bolts and couplers. Good luck!
THE INTAKE GRILLE REMOVAL
(1) Open the intake grille.
(2) Pull down the knob.
(3) Lift the intake grille upward, until the axle at the top of the intake
grille is removed.
THE FRONT PANEL REMOVAL
(1) Remove intake grille (Reference the intake grille removal.)
(2) Remove four screws.
(3) The thumb is hung on the lower part as shown in the figure,
and it pulls to the front, pushing [-] mark , and bottom hooks
(two position) is removed from wall hook bracket.
(4) The front panel bottom is pulled to the front, and bottom hooks
is removed indoor unit.
(5) The front panel is pulled to the front, raising the upper surface,
and a front panel is removed.
Hi Shannon, I would pursue your fight with Fujitsu, normally their units are reliable:( It could be a really simple problem or a really complex one ranging from many componenets. A air conditioner has many more components that people may think. Keep fighting to get the unit repaired will it is still under warranty, after that Fujitsu wont want to know you. It could also be a wiring and refrigerant fault. Call Fujitsu out again. I take the time to answer your question, so please rate me.
Yes i can! The mode of operation (MASTER CONTROL)has been set to AUTO instead of HEAT. Easy mistake and very simple to fix. Press the MASTER CONTROL button until HEAT is display on the LCD. I hope that this helps I take the time to answer you questions so please rate me
On the outdoor unit the fan should not be running, on the indoor unit the fan should be running. If you then check the outdoor unit with fan not running, you should be able to hear clearly that the compressor is actually working. If this is all correct, it is possible that your fourway reverse valve is seeping and needs to be replaced.
The front cover can be dismantled (taken off as one Piece) by unscrewing the screws at the bottom of the air outlet (they are covered by screw cvers which will need to be taken off. Then just pull off the cover. PLEASE NOTE that the front panel (liftable to take out filters) will need to be removed lift up until 90 degrees and then pull off gentley and also take out filters before removing front cover I take the time to answer you questions so please rate me