6
SELF-DIAGNOSTIC ERROR CODES
The Spa Power 500A Mk2 controller has extensive self diagnostic capabilities. In the event
of a problem it will indicate an error number according to the nature of the problem. The
error numbers & their meanings are listed below. Note: When in an error state the alarm
can be muted by pushing the AIR/AUX button.
Error 1 (H20) -
Prime Failed
This is not necessarily a problem with the SP500A Mk2 itself, but indicates that no water
is being detected in the heaters housing. Prime failed is a special case in that it can be
recovered from by pushing a button. A push of the pump button will run the pump for 10
seconds to try to get water to the heater. If successful normal operation will resume. If
unsuccessful, Error 1 (H20) will be indicated on the display again.
With any Error 3 - 5, 7 - 8, spa operation will stop & not continue until the controller
is reset. The controller can only be reset by pushing the UP,DOWN & PUMP buttons
simultaneously.
The controller will remain in an error condition
even when reset at mains power, controller
will only continue normal operation after
the UP, DOWN & PUMP buttons are pushed
simultaneously (see below).
Error 3 -
Stuck Button
This error indicates that one of the buttons in the touchpad is stuck or has been held down
for more than one minute. This may be caused by the pool cover pressing on the touchpad
or by water getting into the touchpad or by damage to the touchpad or its cable. Try to
reset the spa. If there is still a problem then contact your spa pool supplier.
Error 4 -
No Water Sensor
This error indicates a problem with the optical water sensor in the heater. The problem may
be caused by the sensor being disconnected or by damage to the sensor. Try to reset the
spa. If there is still a problem then contact your spa pool supplier.
Error 5 -
Overtemperature
This error indicates that the digital temperature sensor in the heater or pool has detected
a temperature of 45
°
C or more. This may not be a problem with the SP500A Mk2, it may
be caused by excessive pump use in hot weather, or pump failure. Turn off the spa & allow
time for the water to cool. If there is still a problem contact your spa pool supplier.
Error 6 -
Please call service for assistance.
Error 7 -
Stuck Relay
This error indicates a problem with the heater control circuitry inside the unit. Contact your
spa pool supplier.
Error 8 -
No Temperature Data
This error indicates a problem with the digital temperature sensor in the heater or pool wall
or that both the in heater & in pool sensors are connected. Check that only one sensor is
connected & that it has not become disconnected or damaged. Try to reset the spa. If there is
still a problem then contact your spa pool supplier.
