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There are currently no product reviews.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
RI/RO-189W RI/RO-249W
For RI-189W/RO-189W
CHARACTERISTIC OF TH1 & TH2 K
The room is not cooled at all or not cooled. The compressor does not operate.
180 160 140
Push the button "TEST RUN" on the indoor unit, and wait 3 minutes.
120 100 80
Using a tester, 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 the 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 conformed 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 be leaked. The outdoor fan motor may be defective. The outdoor fan motor capacitor may be defective.
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