Daikin SUPER MULTI NX CTXS07JVJU Service Manual page 196

SiUS12-928_B
Troubleshooting
24/32 class
Check No.17
Refer to P.198
Check No.19
Refer to P.199
24/32 class
Note: Refer to "Application of silicon grease to a power transistor and a diode bridge" on page 267 for
detail.
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn off the power and turn it on
again to start the system.
Error displayed again?
NO
Check No. 19
Check the outdoor fan or
related.
OK
Radiation fin dirty?
Slightly dirty
Check No. 17
Check the installation condition.
A
221°F (105°C)
YES
Has the PCB been
replaced?
NO
Check the radiation fin
temperature.
Above A?
YES
NG
Too dirty
Troubleshooting for Outdoor Unit
YES
Check if the silicon grease
(∗) is applied properly on
the radiation fin. If not,
apply it.
∗
Silicon grease
Part No.: 1172698
NO
Replace the outdoor unit
PCB.
Replace the outdoor fan
motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
(R17369)
188