Daikin EUWA/Y5-30HB/C(Z), Service Manual

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ESIE98–06A Troubleshooting
Part 3 – Troubleshooting 3–19
3 3
4
5
1
Part 3
4 Troubleshooting
4.1 What Is in This Chapter
Introduction When a problem occurs, you have to check all possible faults. This chapter gives a general idea of
where to look for faults. Furthermore the general procedures for refrigeration circuit repair and for
electrical circuit repair are explained.
Not all repair procedures are described. Some procedures are considered common practice.
Overview This chapter covers the following topics:
Topic See page
4.2 – Items to Be Checked page 3-20
4.3 – General Repair Procedures page 3-22
4.4 – Unlocking the Keyboard page 3-23
4.5 – Procedure for controller Changing (EUWA/Y5-10HB(Z)) page 3-24
4.6 – Procedure for PCB Changing (EUWA/Y15-30HC(Z)) page 3-28
4.7 – Procedure to Set the Carell Controller page 3-30
4.8 – Control of function of 4 way valve(EUWY5-30HB/C) page 3-31