Spa Builders SC-CF, Service Manual

Page: 34 / 68

HL Flow Chart
If HL error condition occurs (potential hi-limit probe problem), follow
Troubleshooting Flow Chart below to identify the problem:
Take water temperature
with a digital thermometer.
Is water temperature
119
°
F or higher?
Are you getting correct water
temperature reading on the display?
Replace
Spa Pack if
HL error
condition still
persists.
Verify if
temperature probe
is properly connected.
If so, replace
probe.
Verify if
temperature probe
is touching water
or if cold air from
back can affect its
reading.
Pump is
overheating
water during
filter cycle.
Lower
filter cycle
duration.
Replace
Spa Pack.
Remove
spa cover
(even during
the night).
Start
blower, if
spa is
equipped
with one.
Wait until
spa cools
down (add
cold water
if needed).
yes no
Lower Set Point
below actual
water temperature.
"Heater" indicator
on keypad display
should disappear.
Do you get a
240 VAC reading
between the
two heater wires
on the board?
yes no
Verify if anything
is obstructing water
flow (closed traps or
dirty filters).
Verify if
Hi-Limit probe is
properly connected.
Try to clean pins
and reconnect
probe.
If HL error condition persists,
replace Spa Pack.
When HL error
condition occurs,
does heater
barrel feel hot?
yes No
Is weather
very hot?
yes no
yes no
Press any key after each step to reset the system.