Davey Spa Power SP800, User Manual

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Error 4 (“NO WATER SENSOR”) - 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 (“OVER TEMP”) Over Temperature 

This error indicates that one of the digital temperature sensors in either the heater or pool has detected 

a temperature of 45ºC or more. This may not be a problem with the SP800. It may be caused by ex-

cessive pump use in hot weather or pump failure. Turn off the spa and allow time for the water to cool 

then manually push the Light Level, Light Effect Mode, Pump 1A and SPVSB buttons simultaneously. 

If there is still a problem then contact your spa pool supplier.

Error 5 (“OVER TEMP”)  Over Temperature

This error indicates that one of the digital temperature sensors in either the heater or pool has detected 

a temperature of 45ºC or more. This may not be a problem with the SP800.  It may be caused by ex-

cessive pump use in hot weather or pump failure. Turn off the spa and allow time for the water to cool 

then manually push the Light Level, Light Effect Mode, Pump 1A and Pump 2A buttons simultaneously.
If there is still a problem then contact your spa pool supplier. 

Error 6 (“THERMAL CUT OUT”) - Thermal Cut Out Tripped

This error indicates that the safety electromechanical over temperature cut out on the heater has oper-

ated. This is not necessarily a problem with the SP800. It may have occurred from an air lock around the 

element, high temperatures during shipping, or pump failure. This automatic cut out will only reset once 

the element has cooled below about 38ºC. The unit must then be reset before it will resume operation by 

manually pushing the Light Level, Light Effect Mode, Pump 1A and SPVSB buttons simultaneously. 

If there is still a problem then contact your spa pool supplier.

Error 7 (“STUCK RELAY”) - Stuck Relay

This error indicates a problem with the heater control circuitry inside the unit. Contact your spa pool supplier.

Error 8 (“NO TEMP DATA”) - No Temperature Data

This error indicates a problem with the digital temperature sensor in the heater or pool wall. The sen-

sor may have become disconnected or damaged. Try to reset the spa. If there is still a problem then 

contact your spa pool supplier.

Error 9 (“CLOCK FAULT”) Real Time Clock Failure

This error indicates a problem with the real time clock within the SP800. Try to reset the spa. If there is 

still a problem then contact your spa pool supplier.