P8-Outdor Unit Overcurrent Protection Error Lock - Toyotomi KURO Mini Service Manual

P8-Outdor unit overcurrent protection error lock

Error
phenomenon
Explanation of
error
Tools required
for inspection
Frequent
problematic part
Inspection
procedure and
key points
Special attention
Error code
LED light signal of
external panel
Cause: The operating current value of the unit exceeds the protection
value set when the unit is running, and the unit reports the "Outdor unit
overcurrent protection error lock" fault.
Inspection path: Current Transformer → Machine current → Unit
pressure→main external control board
Multimeter, current clamp, main external control board
Transformer, main external control board, lack of fluoride
1. Check the current transformer, whether the number of turns of the
power line through the transformer is correct;
2. Use current clamp to check whether the running current of the unit is
normal;
3. Check if the unit pressure is normal;
When replacing the main control board, ensure that the line order
4. If all of the above are normal, the current transformer may be
before the change and the line after the change are the same, and the
abnormal, and the main control board of the out door is replaced.
number of coils passing through the transformer is the same (usually it
is straight through).
P8
LED1
LED2
LED3
/
/
/