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Troubleshooting M5MSY_(i)
Error Code Diagnosis by Unit Last State Memory Using Wireless Handset
1. Remove battery from wireless handset.
2. Wait for the display to fi nally go off (as this handset uses very small amount of power, hence it takes
longer for the memory to reset).
3. Replace battery again and immediately (before display comes back on the LCD screen), press on Mode
and ON/OFF buttons together until you see “00” is being displayed.
4. Press Mode button to 5:00.
5. Press ON/OFF button once.
6. After that, remove battery from wireless handset and wait until the display has gone off. Then, replace
battery again into the handset.
7. Finally, repeat the fault diagnosis steps by wireless handset GS01 above.
Error Code Diagnosis by Unit Last State Memory Using Wired Handset
1. Press SLEEP and TIMER ACTIVE buttons together until error code starts fl ashing on the last 2 digits of
the clock display area.
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