Hitachi RAS-18SX8 Manuel De Maintenance page 219

9. Timer lamp blinking: blinking twice
[ ] The product is giving a display to indicate that it is performing forcible cooling.
Situation
10. Timer lamp blinking: blinking three times
[ ] The timer lamp blinks three times and the product will not operate.
Situation
[Estimated failure locations]
[Cautions]
[Diagnosis flow]
Initiating troubleshooting
Detach the connector (CN3) from the terminal board
temperature fuse and check the temperature fuse for
continuity. Is the resistance almost 0Ω?
Downloaded from www.Manualslib.com
(This is not a sign of a breakdown.)
・ Meltdown of the terminal board temperature fuse (the terminal board poorly inserted into
the F cable)
・ Outdoor communication circuit out of order
・ If a terminal board is replaced to counter the meltdown of the terminal board temperature
fuse, ensure that the F cable to be inserted into the terminal board has the appropriate
dimension for peeling the insulation sheathing and that the insertion region is unbent before
inserting it into the terminal board securely.
No
Replace the "terminal board."
manuals search engine
Yes
Replace the "indoor electrical installation."
– 252 –