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Great manual, great price. Has a few of the basic operating instructions that most service manuals leave out. Complete instructions for disassembling board by board, safety precautions, schematics, complete parts list.
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I am very pleased with the service manual for my RT-909. This was an easy purchase and great procuct, and much cheaper than other venues i had looked at. This web site is now listed in my favorites list. KEEP UP THE GOOD WORK. THANKS. J. BROWN
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A very well written and easy to understand manual.
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There was no problem at all.After paying i had to wait only a few hours,than i could
download the manual in best pdf-quality.
Thank You !
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I found this service manual to be complete in every detail except for troubleshooting charts. It would be helpful if it had a set of troubleshooting charts; however it is a very good manual otherwise and for the price it is very well worth it.
AY-A126E AE-A126E
CHARACTERISTIC OF TH1 & TH2 K�
The room is not cooled. The compressor does not operate.
180 160 140
Push the button "TEST" on the indoor unit, and wait 3 minutes.
120 100 80
Using a meter, measure voltage at the terminals on the terminal board.
60 40 20 0 -10 0 10 20 Fig. T-1
TH1,TH2
30 40�C
Is there a voltage between terminal "N" and "1" of the terminal board the power supply voltage ?
NO
Replace the PWB ass'y with a new one. YES
Measure resistances of TH1 and TH2.
Are the resistances correct Fig. T-1 ?
NO
YES
Replace the thermistor ass'y with a new one.
The control circuit is normal. The compressor may be defective. The running capacitor may be defective. Refrigerant may have leaked. The outdoor fan motor may be defective. The outdoor fan motor capacitor may be defective.
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