GD Midea Refrigeration Equipment Elite Series Technical & Service Manual page 19

EEROM error
Indoor unit communication err
r Extinguish
Yes Does ind oor heat -
Check sp eed
of in door exchan g er frosted?
motor.
Doe s the outdoo r
Che ck speed
temp over 48 C?
of o utdoo r
mo tor.
Check t he over-
c urre n t prot ect or of
c omp ressor.
Recyc le the
refrigerant
and recharge .
C heck the soft
st arter mou ld.
Re place the
ma in PCB board .
Re place the
co mpressor.
☆ Flash at 5Hz
Cur r ent protectio n
(LED indi cates)
Chec k t he indoor
air filt er.
Check the out door
condenser.
Che ck t he positio n
and wiring of tem p
sen sor (all of the m).
Yes
D oes it occur in
C ool mode?
No
Yes
It is n orma l under
tha t ambient temp .
o
No
R eplace the re verse
v alve.
☆
X
X X
If wro ng, t he unit w ill
result in current
prote ction, not tem p.
No
Does outdo o r heat -
exchanger fr osted?
No
Yes Doe s the ind oor
temp low than 1 0 C?
No
Check t he solenoid
coil o f reve rse valve.
Check t h e soft
starter m ou ld.
C heck t he ov e r-
c urre nt prot ect or of
c ompressor.
Replace th e
main PCB board.
Recycle the ref rig e-
rant and rech arge.
18
☆
X
☆
X
Yes
Che ck t he
dra inage
sys tem of
out door unit.
o