Garmin G500H G500H Cockpit Reference Guide - Page 61
Alerts - fans
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ALERTS ALERTS Alerts NOTE: Contact your Garmin dealer for service if any of the following alerts appear. On Screen Alerts Alert AHRS1 GPS AHRS1 SRVC AHRS1 TAS CAL LOST CNFG MISMATCH CNFG MODULE DATA LOST DIAG MODE FAN 1/2 FAIL GATE MODE GEO LIMITS GPS1/2 FAIL GPS(1/2) PPS FAIL GSR FAIL HDG FAULT HDG LOST CONFIG COOLING DB ERR SERVICE Description AHRS 1 not receiving any GPS information. AHRS 1 is operating exclusively in no-GPS mode. AHRS 1 is using the backup GPS information. AHRS1 magnetic field model needs update. This appears on the ground only. AHRS is not receiving true airspeed from ADC. Registry reports that the GDU 620 has lost calibration data. GDU 1-2 airframe configuration settings disagree. Failure of configuration module. Pilot stored data was lost. Recheck data and settings. System is in Diagnostic Mode. Cooling fan #1 or #2 has failed. Automated testing is on. AHRS too far North/South, no magnetic compass. No GPS1 or GPS2 data is available. The PPS signal has not been received in more than 5 seconds. GSR power discrete is on and GSR status discrete is off. The Iridium interface reports a timeout. AHRS 1 magnetometer fault has occurred. HDG features disabled or defaulted to GPS1 TRK. Error in configuration of specific LRU, where denotes specific LRU. Specific LRU has poor cooling, reducing power usage. Database for specific LRU is corrupt. Specific LRU needs service. 190-01150-03 Rev B G500H Cockpit Reference Guide 51