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Common Diagnostic Messages
Ambient Over-Temperature
If the temperature internal to the Spa Pac exceeds 118°F, all outputs will be shut off – no pumps
or lights will operate until the temperature inside the Spa Pac decreases to 104°F. This protection
is intended to prevent damage to critical Spa and Control components.
Error Code Meaning Action
Hr
DO NOT ENTER THE
WATER!
An internal hardware error has
been detected.
Turn off power to the spa, wait 30 seconds
and turn power back on. Start and stop all
pumps. If spa does not reset or the error
does not clear, turn off the power to the spa
and contact ThermoSpas Service Depart-
ment 800.876.0158.
HL
DO NOT ENTER THE
WATER!
Water temperature has exceeded
119°F.
Wait for the water to cool (you may add
cold water) or turn off spa power, wait 30
seconds, then turn on spa power. If the
error persists, measure spa water with
a digital thermometer and compare to
the display. If the problem persists, con-
tact ThermoSpas Service Department
800.876.0158.
Prr
An error exists with the water tem-
perature probe.
Change the temperature setpoint. If the
problem persists, contact ThermoSpas Ser-
vice Department 800.876.0158.
Aoh
The temperture inside the spa
cabinetry is too high.
Remove panels until spa cools and error
clears.
oh
DO NOT ENTER THE
WATER!
Water temeprature has reached
108˚F (42˚C).
Remove the spa cover, add cool water and
lower the ltration cycles. If the problem
persists, contact ThermoSpas Service De-
partment 800.876.0158.
FLO
The system did not detect water
owing with pump 1 on.
Remove the lters, check water level,
open all gate valves, ensure pump 1 is on
and moving water. If the problem persists,
contact ThermoSpas Service Department
800.876.0158.
!
!
!
Common Diagnostic Messages
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