Air-to-water Heat Pump Split Versati
100
SPLIT TYPE
◆
Compressor Current Protection (Code:"P5"); Compressor Motor Desynchronizing (Code:"H7"); IPM
Protection (Code:"H5"); Phase Loss (Code:"LD")
“Com. over-curr.”,
“Desynchronize”,
“IPM defective” or
“Phase loss” is
Displayed on the
wired controller
Is the
compressor
wire phase
sequence
right
?
P5
、
H7
、
H5 or LD
is displayed in the
mainboard 88
indicating lamp
Is the
compressor
wire terminals
tightened
?
Replace the
mainboard.
Does it work
normally
?
Replace
the compressor
Work Normally
Adjust the
compressor
phase sequence
Tighten the
compressor
wire terminals
YES
NO
YES
NO
NO
YES
◆
Charging Circuit Error(Code:"PU")
“Charge circuit” is
displayed on the
wired controller
PU is displayed in
the mainboard 88
indicating lamp
Is the PFC wire
tightened or is the
sequence right?
Replace
the
driver board AP4
Tighten the PFC wire
or adjust the sequence
Work Normally
