10 Troubleshooting
Troubleshooting in check mode
SMGB0136 rev.0 - 07/2021
300
Protection control code on 7-segment display
1 Protection control code is displayed on 7-segment when a protection control is activated.
2 Protection control code is displayed while function is working, and goes out when released.
3 When several protection control are activated, code number with higher priority will be indicated (see below for the
priority order).
a. Higher priority is given to protection control related to frequency control than the other. Priority order:
High-pressure increase protection
Over current protection
Cold draft protection
b. In relation to retry control, the latest retrial will b indicated unless a protection control related to frequency control
is indicated.
RAS-3HVRC2
Priority Protection control Code
1 Low-Pressure Ratio Control at Cooling Operation
p0
2 High-pressure ratio control at heating operation
p1
3 High-pressure rise protection
p2
4 Current protection
p3
5 Inverterntemperatureriseprevention
P4
6 Discharge gas temperature rise protection
p5
7 Unbalance Power Source Detecting
p9
8 Demand current control
pA
? NOTE
The protection control code being indicated on 7-segment display is changed to an alarm code when the abnormal operation occurs. Also,
the same alarm code is indicated on the remote control switch.
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