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3.6.17 Error messages for heating
Commissioning and Operation
The water flow is low – M016**
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* – M017**
There is not enough water flow through the heater to carry the heat away from
the heating element and the heater has been disabled. See “Flow Related Checks”
below. After the problem has been resolved, reset the message*.
The heater may be dry* – M028**
Possible dry heater, or not enough water in the heater to start it. The spa is shut
down for 15 min. Reset this message* to reset the heater start-up. See “Flow Related
Checks” below.
The heater is dry* – M027**
There is not enough water in the heater to start it. The spa is shut down. After the
problem has been resolved, you must reset the message* to restart heater start
up. See “Flow Related Checks” below.
The heater is too hot* – M030**
One of the water temp sensors has detected 118°f (47.8°C) in the heater and the
spa is shut down. You must reset the message* when water is below 108°f (42.2°C).
See “Flow Related Checks” below.
Flow-Related Checks
Check for low water level, 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 equip-
ment may occasionally turn on to continue monitoring temperature or if freeze
protection is needed.
* Some messages can be reset from the panel. Messages that can be reset will appear with
a “right arrow” at the end of the message.
Press the message text to reset the message.
