46in.xe TechBookSpa not heating!• Check for an errormessage on keypaddisplay If there is one,refer to specific sec-tion indicated by theerror message• If there is no errormessage, try to raisewater temperature byincreasing the set point2°F higher than actualwater temperaturePress Up key toincrease set point• If heater indicator lightsup on the display, takevoltage reading on theheater terminalsYour reading should be:240 V: Line 1 & Line 2120 V: Line 1 & NeutralHeater indicatorset point indicator• Verify if Heaterindicator appears onkeypad display• The heater indicatorwill be on when heateris on It will flash ifmore heat has beenrequested, but heaterhas not started yet• If voltage reading isnot as it should be,verify that heaterterminals are properlyconnected • If it is as it should be,replace spa pack• In the case of theEuropean modelinxece only, replaceaccessory fuse• If problem persists,replace spa packIf a keypad doesn’t seem to work:• Verify keypad connections and try spare keypad• Replace keypad if problem is corrected• Replace inxe if problem is not correctedKeypad doesn't seem to work step-by-step240 V Heater (4 kW or 2 kW) 120 V Heater (1 kW)L2 GroundL1N L1NKeypad connector