Y Series TechBook
45
Spa not heating!
• Check for an error
message on keypad
display If there is one,
refer to specific section
indicated by the error
message
• If there is no error
message, try to raise
water temperature by
increasing the Set Point
2°F higher than actual
water temperature
Press Up key to increase
Set Point
• If heater indicator lights
up on the display, take
voltage reading between
the heater live and
return terminals
Your reading should be:
240 V: for 240 V heaters
120 V: for 120 V heaters
Heater indicator
Set Point indicator
• Verify if Heater indicator
appears on keypad
display
• The heater indicator will
be on when heater is on
It will flash if more heat
has been requested,
but heater has not
started yet
• If voltage reading is not
as it should be, verify
if heater terminals are
properly connected
• If it is, replace spa pack
• In the case of the
European model inytce
only, replace accessory
fuse
• If problem persists,
replace spa pack
Live
Ground
Return
If spa is not heating,
follow this troubleshooting flow chart:
Flow chart
Spa not heating / flow chart & step-by-step
yes
Are there
any error
messages
on the
keypad
display?
Ensure temp
Set Point is
higher than
actual water
temp
no
Refer to specific
error message
section
Has
Heater
indicator
appeared
on keypad
display?
yes
no
Do you get
a 240 V
reading
between the
two heater
terminals
on the board?
yes
no
Replace
spa pack
Are heater
screws properly
connected to
the heater?
yes
no
Take water
temp and
compare with
temp value
displayed
on keypad
Is difference
greater than
2°F?
yes
no
System
works fine
yes
no
Replace
heater
Tighten
screws
properly
Is there
still a
problem?
Problem
solved
Replace
heater
Heater fuse (F1)
(CE Model only)
Replace
heater
Check
wiring and
plugs
Replace if
needed