EdgeStar Air Compressor AP550Z User Manual

Troubleshooting and reconnecting wires to the “compressor capacitor” on the  
AP550Z  
Tools required:  
Phillips screwdriver  
The problem:  
If the AP550Z was recently shipped or roughly moved, it may have one of two problems:  
The fan to the interior of the room turns on, but the air blown out of it is room  
temperature. Or,  
The unit blows the circuit breaker it is run on  
Warnings:  
Make sure the unit is disconnected from the power supply prior to working  
on it  
Do not attempt this repair if you do not feel comfortable with any procedures  
If you require any assistance, please call EdgeStar Service at 866-319-5473  
The repair:  
1. Make sure the unit is unplugged  
2. Face the rear of the unit  
3. Remove the filter frame:  
Pull up on the  
filter frame, then  
pull down and  
away from the unit  
to remove it  
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Step B.  
Remove these two  
screws.  
Step C.  
Pull the panel down and  
off the unit  
6. Locate the “compressor capacitor”. It is a silver cylinder that is about 4”  
long.  
Make sure that the unit is not plugged in prior to touching any wires  
Compressor  
capacitor  
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7. Look at the wires going into this capacitor- there should be four wires and  
one bare terminal.  
A view of the  
capacitor from  
below  
A close-up of the  
capacitor  
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8. If any wires are not connected, connect them. The three blue wires all  
connect to one terminal, and the one red wire connects to a terminal all by  
itself.  
This image shows the  
capacitor removed (not a  
required step) in order to  
show greater detail  
Blue wires all  
connect here  
Red wire  
connects here  
Bare terminal  
9. Finally, put the unit back together by reversing the above instructions.  
10. Once the unit is completely reassembled, plug it in. Select the cool mode,  
and lower the thermostat settings all the way. The compressor should kick  
on after no more than 3 minutes. If so, congratulations on the repair! If  
not, call EdgeStar service at 866-319-5473 for further assistance.  
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