32
Y Series TechBook
32
The system has shut down because the temperature at the heater has reached
119°F (48°C).
yes
Take water
temperature
with a digital
thermometer
Is water
temp.
119°F or
higher?
no
Are you getting
correct water
temperature
reading on
the display?
Is the
weather
very hot?
Verify if
temperature
probe is
properly
connected
If so, replace
heater
Reset system*
yes
Remove spa cover
(even during the night)
Start blower, if spa is
equipped with one
Lower Set Point
below actual water
temperature
Heater
indicator
on keypad display
should disappear
When HL error
message occurs,
does heater
barrel feel
hot? **
Do you get
a 240 V
reading
between
the two
heater
wires on the
board?
Replace
spa pack
no
Pump is
overheating
water during
filter cycle
Lower filter
cycle duration
Reset system*
Verify if anything
is obstructing water
flow (closed traps
or dirty filters)
Reset system*
Verify if Hi-Limit
probe is properly
connected
Reset system*
If HL error
message persists,
replace spa pack
yes
Wait until spa cools
down (add cold water
if needed)
Reset system*
no
no
yes
If problem persists,
replace heater
If problem persists,
replace spa pack
yes
no
* To Reset System:
Turn power off
and on again at
the main breaker
** Warning! Handle with care as
heater may be really hot!
HL
Water temperature at the
heater has reached 119°F
1 Measure the temper-
ature with a DIGITAL
thermometer and
compare its reading
with temp on the
display Make sure the
temp reading is lower
than 119°F
3 If reading is 119°F or
higher:
• Verify if the Temp &
High Limit probes are
properly connected
• Shut power off and
power the spa up
again to reset the system
• If problem persists,
replace heater
• If problem persists,
replace spa pack
2 If reading is below 119°F:
• Carefully check if
heater barrel feels hot
If it’s hot, verify if anything
is obstructing water flow
(closed valves or dirty
filter)
• Shut power off and
power the spa up again
to reset the system
• If HL error persists,
replace heater
• If HL error persists,
replace spa pack
HL error message / flow chart & step-by-step
Flow chart
Step-by-Step
Regulation probe