User Guide

Service Manual NeoTherm 80 - NeoTherm 285

7. Placethenewcircuitboardinpositionandreplace

the screws.

8. Pluginthetworibboncableconnectors.

9. PluginconnectorsX01andX07.

10. Replacethefrontpanelassembly.

11. Turnonpowertotheunit.

Removing and Replacing

the Current User Interface (continued)

When to Replace a SOLA Controller

Whenatechnicianistroubleshootingaproblemwitha

NeoThermunit,becausetheHoneywellSOLAcontrol-

leristhemostcomplicatedpart,it’stemptingtoassume

thatthecontrolleriscausingtheproblem.Usuallythe

problemiscausedbyaninput(asensororswitch),orby

aprogrammingproblem.

Don’t automatically assume that every problem is

caused by a bad controller.

LaarsusesthesameSOLAcontrollerinmanydifferent

NeoThermmodels.Thecontrollersareprogrammeddif-

ferentlyforthedifferentNeoThermmodels.Thereplace-

mentmustbeprogrammedatthefactoryforthespecic

modeloftheNeoThermunitinwhichitwillbeused.

cont.