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Perfect like it was descriped, Perfect like it was descriped
;
Very good detail, all pages clear, exactly what I needed
;
Excellent service, and just what I needed to service my TU-7700. All pages of the manual are clear and easily readable.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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We received the manual in a timely manner and it was exactly what we were expecting. Excellent replacement for original Service Manual.
All schematics are very legible. We are really satisfied.
AH-A129E AU-A129E
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. 1
10�C 30K
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. 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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