Hitachi RAC-70YH7 Service Manual page 76

3. Only indoor fan does not operate (other is normal)
4. Air deflector does not move (others are normal)
5. All systems stop from several seconds to several minutes after operation is started (all indicators
are also off)
Disconnect joint connector at indoor fan motor and set to
the fan mode again.
Check the T001 and
interface relay.
– 86 –
501