Daikin FXSQ63P7VEB [198/370] Check items for service

Daikin FXSQ100PVE [198/370] Check items for service
Check Items for Service SiBE311209
189 Service Diagnosis
1. Check Items for Service
1.1 For Troubleshooting
1.1.1 Initial Check and Service Diagnosis
1. Thoroughly check for requests/complaints of the users.
2. Check for statuses in which faults occur through hearings from users.
3. Check whether or not any "error code" is displayed on the remote controller.
(Or check whether or not any error is caused in the monitor mode of outdoor unit.)
4. If no error code is displayed, carry out a service diagnosis with reference to information in
the "Symptom-based Troubleshooting" section.
If any "error code" is displayed, carry out a service diagnosis with reference to information in
the "Troubleshooting Flowchart" section.
1.1.2 Taking Countermeasures
1. According to the result of service diagnosis, rectify the fault or replace the defective part(s).
2. To conduct the dismounting work, turn OFF all power supplies, and then wait for a lapse of
10 minutes or more.
3. To replace any part in the refrigerant circuit, be sure to recover refrigerant beforehand.
1.1.3 Check after Taking Countermeasures
1. After the completion of rectifying the fault, run the system to ensure that it is definitely
normal.
2. Record the results of checks to explain them to the user.
1.2 Precautions for Service
To conduct service, pay careful attention to the precautions shown below.
1.2.1 Precautions for Service
Before conducting service, touch a metal part with no paint coating applied (e.g. the lid of switch
box for standard units, or bolts that fix the switch box for anti corrosion treatment and heavy anti
corrosion treatment units) to eliminate static electricity.
1.2.2 Precautions for Access Lid for Service
Be sure to close the access lid for service after the completion of service.
(Not doing so will cause water or foreign matter to enter the unit, thus resulting in failures.)
1.2.3 Precautions for Service in El. Compo. Box
1. Do not open the el. compo. box lid. for a period of 10 minutes after turning OFF the power
supply.
2. After opening the el. compo. box lid., make measurement of voltage between the terminals
of the power supply terminal block by the use of a multiple meter.
Then, make voltage measurement in the points shown in the figure on the following page by
the use of a multiple meter to ensure that the voltage of the main circuit capacitor is not more
than 50VDC.
3. To prevent a failure of PCBs, be sure to touch the earth terminal in the el. compo. box by
hand right before disconnecting and connecting a connector to eliminate static electricity
from the body.
4. Disconnect the junction connectors X1A, X2A, X3A, and X4A (X3A and X4A are only
equipped on systems with 2 outdoor units) from the outdoor unit fan motors, and then
commence the service work.
When disconnecting the junction connectors, pay careful attention not to touch a live part.
(Rotating the outdoor unit fan due to the strong wind may store electricity in the main circuit
capacitor, thus resulting in an electric shock.)

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