have download a number of manuals todate , most are excellant, one or two sometimes a little difficult to read but a least avaialable, great site .
Brad.
Good manual. It is complete and of high quality, both text and graphics. The schematics are with the original big size, so it can be viewed or printed without any loss of resulution and sharpness.
Text excerpt from page 14 (click to view)
AH/AU-A079E AH/AU-A099E
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT
The machine does not function at all with remote control and switches on the indoor unit.
Using a tester, measure the voltage between terminal " 1 " and " 2 " of connector CN2 on PWB ass'y.
measure the secondary voltage of transformer.
Is the measured value approx. 16.0 Vac ?
NO
YES Replace the PWB with a new one. YES Replace the fuse and varistor with new ones. Replace the ftransformer with a new one. Is the 2.5A fuse down ? NO