Common LED Equipment Safety Messages
(continued)
14
If the LCD
displays...
LF
dy
dr
SA
Sb
Sn
Indicates...
Water flow prob-
lem - Persistent
flow problem
Lack of water to
the heater
Lack of water to
the heater
Heater sensor A not
functioning
Heater sensor B not
functioning
Heater sensors are
out of balance
What happens...
Heater will shut down
while spa continues to
function normally
Heater will shut down
while spa continues to
function normally
Heater will shut down
while spa continues to
function normally
Spa automatically
deactivated
Spa automatically
deactivated
Corrective action...
- Remove filter and clean
- Add water
- Open all jets
- Contact dealer or service person
- Clean filter
- Add water
- Open all jets
- Contact dealer
- Add water
- Clean filter
- Open all jets
Contact dealer for replacement
sensor
Contact dealer for replacement
sensor
Contact dealer
Possible cause...
- Plugged filter
- Low water
- Jets closed
- Dirty filter
- Insufficient water in spa
- Jets closed
- Insufficient water in spa
- Dirty filter
- Jets closed
Non-functioning sensor
Non-functioning sensor
Message
What it is...
What it means...
Pr
Priming mode
Spa is in normal Priming Mode operation
SL
Sleep mode
Spa is in normal Sleep Mode operation
EC
Economy mode
Spa is in normal Economy Mode operation
St
Standard mode
Spa is in normal Standard Mode operation
IC
Freeze condition
Heater will come on to keep water above 45°F
Temperature
No current water temperature reading
Common LED Messages
The following table defines other messages you will fre-
quently see on the LCD display: