Y Series TechBook
43
Step-by-Step
Transformer fuse
• Verify the transformer
fuse
• Replace transformer
fuse if neccessary
• If problem persists,
replace spa pack
• Verify if keypad is correctly connected to the spa pack
For 2-phase system
• Measure voltage between
line 1 and neutral and
between line 2 and
neutral
• You should get 230 V AC
on both readings
• If you do not get good
readings, this indicates an
electrical wiring problem
Call an electrician!
For 3-phase system
• Measure voltage between
line 1 and neutral, between
line 2 and neutral and
between line 3 and
neutral
• You should get 230 V AC
for each reading
• If you do not get good
readings, this indicates an
electrical wiring problem
Call an electrician!
For 3-phase Delta system
• Measure voltage between
line 1 and line 2, between
line 1 and line 3 and
between line 2 and line 3
• You should get 230 V AC
for each reading
• If you do not get good
readings, this indicates an
electrical wiring problem
Call an electrician!
For 1-phase system
• On the terminal block,
measure voltage between
line 1 and neutral
• You should get 230 V AC
• If you do not get good
readings, this indicates an
electrical wiring problem
Call an electrician!
Nothing seems to work!
Verify that all screws are
properly tightened on the
terminal block Turn power
off and make sure that all
cables hold firmly in the
terminal block if you pull
on them Once done, turn
power back on
If the voltage reading are OK then:
