Single Zone Service Manual - General

Part 4 Trouble Shooting
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7) CH40: CT Sensor Error (Open/Short)
Is AC input
current sensing part
normal?
Check voltage measurement
on the input current (Fig.1)
at the power-on standby
state DC 0V ± 0.2V
DC voltage measurement
at the measurement point in
figure 2 at power-on
standby state -> measured
value : within 2.5V ± 0.2V
Is the Comp
phase Current sensor
part normal?