Sigma AS-H50Y Heat Pump User Manual


 
E1: the water temperature sensor is not working correctly.
E2 : the tube sensor is not working correctly. Please contact your dealer.
E3 : Pool filtration is running but water flow is not sensed. ‘Flow
Switch’ may not be working properly or there is a lack of water
flow. Backwash filter and check suction lines (Skimmer(s) & Main
Drain(s) for obstruction.
E4 : Indicates high water/refrigerant pressure. High limit pressure
switch has activated and turned off power supply.
IF THE HEATER STOPS WORKING ONE OF THE FOUR ERRORS WILL BE DISPLAYED
THE FAILURE LIGHT WILL BE ON AND THE RELEVANT CODE WILL START TO FLASH
CONTROL PANEL FUNCTION - ERROR DISPLAY 1-4
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PLEASE ALSO SEE PAGE 15 - FILTRATION & FAQ