Message Meaning
Action Required
Sn
Sensors are out of
If the problem persists,
balance. If alternating
contact your dealer or service
with spa temp, it may
organization.
just be a temporary
condition. If flashing by
itself, spa is shut down.
HL
A significant difference
Check water level in spa.
between temperature Refill if necessary. If the water
sensors has been
level is okay, make sure the
detected. This could
pump(s) have been primed.
indicate a flow problem.
LF
Persistent low flow
Follow action required for “HL”
problems. (Displays
on the fifth occurrence of
HL message within 24 hrs.)
Heater is shut down, but
other spa functions continue
to run normally.
dr
Possible inadequate
Check water level in spa. If
water, poor flow or
water level is okay, make sure
air bubbles detected
pump(s) have been primed.
in the heater. Spa
Press any button to reset or this
is shut down for 15
message will automatically reset
minutes.
within 15 minutes.
dy
Inadequate water
Follow action required for “dr”
detected in heater.
message.
(Displays on third
occurrence of “dr”
message.) Spa is shut
down.
WARNING! / Shock Hazard! / No User Serviceable Parts.
Do not attempt service of this control. Contact Cyanna Valley Spas or service
organization for assistance. Installation and/or service must be performed by a
licensed electrician and all grounding connections must be properly installed.
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