Specifications
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5.1 Maintenance
General Maintenance
a.  The unit should be serviced once a year by a authorised EVO technician. If the unit is 
located in a coastal area, more frequent maintenance may be necessary.
b.  The unit is designed to withstand only normal rainfall. It is NOT recommended to use  
a hose or high pressure water cleaner to ush the internals of the heater. Pressurised 
water may cause damage to the heater. Compressed air is acceptable however care 
must be taken with the ns of the condensor.
Ensure the unit has sufcient water ow at all times to operate correctly by keeping all 
lters, skimmer boxes and pump lter baskets clean. Check any bypass valves or other 
equipment for correct operation and setting. Refer to specications for correct water 
ow volume for your heater.
5.2 Troubleshooting
The unit will not run
a.  Is the screen of control panel lit? If not, make sure the electrical wires and cables are 
correctly connected and the power is on. Ensure any circuit breaker devices are set to 
the ON position and press the ON button on your controller. Check your controller cable 
is plugged in and is not damaged. If the unit has been shut off or the power has been 
interrupted the heater will not restart for a 5 minute period to protect the compressor. 
Wait 5 minutes before attempting a restart.
b.  Is there sufcient water ow? If the screen displays a water ow related error check the 
water ow. Is the water pump in operation and the system free of debris that may cause 
a blockage? Disconnect pool cleaners to ensure proper water ow.
c.  Is the current pool/spa water temperature higher than the set temperature on the  
controller? If so the unit will not operate until the pool/spa water temperature falls below 
the set temperature on the controller.
d.  Check the unit is set to run at the correct time and date. Please check your current  
timing or temperature modes on your controller – you may have programmed the unit  
to turn on at a different time/date.
e.  Check the controller for error messages and refer to table below.
Maintenance and 
Troubleshooting










