Troubleshooting by Remote Controller
Disconnect the cable from
the fan, and then check
the fan motor for the
insulation resistance.
Power
Check for connector connections: Remove
and insert the connectors shown below.
OFF
<Example> CMSQ-A7
[Fan 1]
• A1P X28A ⇔ X6A A3P
• A1P X20A ⇔ X4A A3P
• A3P X61A ⇔ X402A A2P
• A3P X1A ⇔ X403A A2P
• A3P X5A ⇔ X5A A4P
• A3P X41A ⇔ X3A A4P
• A4P X4A Short connector
A
The
insulation
resistance is low (i.e., not
more than
1MΩ.)
NO
F400U
of the A2P has
been molten.
NO
B
CMSQ-A7
YES
Note) X3A: black
X4A: yellow
YES
Replace the noise
filter of the A2P.
Si20-701_B
Replace the fan
motor.
Replace the fan
driver PCB.
F400U
319