A If HIGH AIR Temperature light remains lit after engine cools, disconnect lead493 from high air temperature switch on APU. If HIGH AIR Temperaturelight goes out high air temperature switch is defective. Notify SupportMaintenance. If light remains on after disconnecting lead, go to step B.BTurn MASTER switch OFF. Remove APU control box (p 13-35). DisconnectAPU control panel plug. Check for short to ground by placing red multimeterprobe in panel connector terminal J, and ground back probe to control boxchassis. If meter indicates O ohms, replace or repair HIGH AIR TEMPeraturelamp socket (p 13-35). If meter remains ongo to step C.2-259Change 4TM 9-2350-267-20
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
