Daikin REMQ16PY1 [372/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred

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YES

Replace the main PC board of

the outdoor unit.

• With single systems, replace

the control PC board 1 (A1P) or

the control PC board 3 (A3P).

• With multi systems, replace the

main PC board (A1P).

YES

The number of indoor units

exceeds the standard. Check the

connection to correct.

Replace the main PC board of

the outdoor unit.

• With single systems, repl

ace the

control PC board 1 (A1P).

• With multi systems, replace the

main PC board (A1P).

Match the refrigerant types of the

outdoor unit and the indoor unit.

Check 3 Check 4

Diagnosis Flow 1

Check 3 Check 4

Diagnosis Flow 2

The number of

indoor units connected to

the same refrigerant circurt system

should not be more than

64 units.

Check if the

refrigerant type of the

outdoor unit corresponds to that

of the indoor unit.

Caution

Be sure to turn off power switch before connect or disconnect connector,

or parts damage may be occurred.