Vestfrost VLS 054A SDD Manual Tecnico página 35

R=0 on wires to
C and T
YES
"*" in display
NO
Check SP and Hy
(SP=3 Hy=0.1)
Power wires to
controller are ok?
YES
Voltage >17V on
compressor
NO
Check power
wires to fromPV
panels
YES
Voltage >17V
on compressor
YES
NO
NO
Wireconnection
on back of
controller OK?
Replace
YES
controller
Fix wires
35
Change
compressor
ECU
Check wire
connection on
terminal board
Replace
controller
Fix wires
GB