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Troubleshooting
for U8 malfunction
Re-energize1
minute after
de-erergization
U8 is still
displayed
The unit returns to normal.
Conclusion:U8 is displayed due
to instant energization afte de-
energization while the capacitor
discharges slowly.
The zero-cross detection
circuit of the mainboard is
defined abnormal.Replace
the mainboard with the same
model
End
No
Yes
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Summary of Contents for MS-H07AIC PT
Page 1: ...SERVICE MANUAL MS H07AIC PT MS H09AIC PT MS H12AIC PT MS H18AIC PT MULTI SYSTEM SERIE ...
Page 2: ......
Page 4: ...FAN MODE I F EEL CLOCK TIMER ON X FAN TEMP TIMER OFF TURBO SLEEP LIGHT ...
Page 5: ...MS H07AIC PT MS H09AIC PT ...
Page 6: ...MS H12AIC PT MS 18AIC PT ...
Page 47: ...PARTS GUIDE MS H12AIM PT MS H18AIM PT MULTI SYSTEM SERIE MS H07AIM PT MS H09AIM PT ...
Page 48: ......