56
DO NOT DIVE.
Spa Controls
HEATER-RELATED MESSAGES
THE WATER FLOW IS LOW
There may not be enough water flow through the heater to carry the heat away from the heating
element. Heater start up will begin again after about 1 min. See “Flow Related Checks” below.
THE WATER FLOW HAS FAILED*
There is not enough water flow through the heater to carry the heat away from the heating ele-
ment and the heater has been disabled. See “Flow Related Checks” below. After the problem has
been resolved, you must press any button to reset and begin heater start up.
THE HEATER MAY BE DRY*
Possible dry heater, or not enough water in the heater to start it. The spa is shut down for 15 min.
Press any button to reset the heater start-up. See “Flow Related Checks” below.
THE HEATER IS DRY*
There is not enough water in the heater to start it. The spa is shut down. After the problem has
been resolved, you must clear the message to restart heater start up. See “Flow Related Checks”
below.
THE HEATER IS TOO HOT*
One of the water temp sensors has detected 118°f (47.8°C) in the heater and the spa is shut
down. You must clear the message when water is below 108°f (42.2°C). See “Flow Related
Checks” below.
FLOW-RELATED CHECKS
Check filters for possible blockage. Try cleaning or replacing filters (especially if spa is equipped
with 24 hour circulation pump).
Check for low water level, clogged filters, suction flow restrictions, closed valves, trapped air, too
many closed jets and pump prime.
On some systems, even when spa is shut down by an error condition, some equipment may occa-
sionally turn on to continue monitoring temperature or if freeze protection is needed.
* This message can be reset from the topside panel.
MasterSpaParts.com
