Ocassionally G5 HSI does not power up

Discussion in 'Avionics and Upgrades' started by Baron62, Mar 29, 2018.

  1. Baron62

    Baron62 Pre-takeoff checklist

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    Ocassionally G5 HSI does not power up when I turn on the battery master. I then proceed to hold the G5 HSI power button for 10 seconds and the unit starts up to run correctly. Has anybody else run into this issue?
     
  2. bnt83

    bnt83 Final Approach PoA Supporter

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    They sure don't flat out say anything about fixing your issue but its worth a shot upgrading the software to find out if it changes it.

    Change History
    Changes made from version 5.00 to 5.20:
    • Added support for GSA 28 yaw damper in certified aircraft installations
    • Improved GAD 29B analog heading/course datum outputs
    • Improved battery status display
    • Changed glideslope deviation to be hidden when not flying inbound on localizer course
    • General improvements to system operation
    • Includes update to GMC 507 software version 2.20
    • Includes update to GSA 28 software version 4.10
    • Includes GAD 29 software version 3.00
    • Includes GMU 11 software version 2.00
    Changes made from version 4.10 to 5.00:
    • Added support for GMC 507 AFCS mode control panel
    • Added support for GSA 28 trim servos
    • Added support for flight director VOR, LOC, and GS modes
    • Added display of AFCS pre-flight test status
    • Added support for additional configuration for certified aircraft installations
    • Added ability to display AFCS data on all displays when multiple displays are present
    • Improved status message display
    • Improved ESP operation
    • General improvements to system operation
    • Includes update to GMC 507 software version 2.10
    • Includes update to GSA 28 software version 4.00
    • Includes GAD 29 software version 3.00
    • Includes GMU 11 software version 2.00
    Changes made from version 3.20 to 4.10:
    • Added support for GAD 29B and analog autopilot interface with GPSS
    • Added option to configure roll indicator for sky pointer or ground pointer
    • Added ability to adjust pitch/roll calibration without leveling aircraft
    • Added ability to configure unit yaw installation offset for use in angled panels
    • Added display of battery status on backlight adjustment page
    • Added 'EFIS/Airdata 2' ARINC 429 output format
    • Changed battery status display when battery is unable to charge
    • Changed selected track bug symbol
    • Improved heading tape bug indicator display
    • Improved altitude display when adjusting baro setting
    • Improved HSI page data field display
    • Improved configuration of hectopascal pressure units
    • General improvements to system operation
    • Includes GAD 29 software version 3.00
    • Includes GMU 11 software version 2.00
    • Includes GSA 28 software version 3.20
    Changes made from version 3.10 to 3.20:
    • Improved display of battery status
    • Improved attitude calculation
    • General improvements to system operation
    • Includes GAD29 software version 2.30
    • Includes GMU11 software version 2.00
    • Includes GSA28 software version 3.20
    Changes made from version 2.70 to 3.10:
    • Added support for GMU11 magnetometer
    • Added ability to reset to factory defaults
    • Added auto-slew support to sync VLOC course when switching from GPS to VLOC
    • Improved VHF radio VOR bearing display
    • Improved display of HDG and GPS fields on PFD
    • Improved display of LOI/DR and MSG/WPT indicators on HSI
    • Save PFD heading bug, track bug, and VLOC course through power cycles
    • General improvements to system operation
    • Includes GAD29 software version 2.30
    • Includes GMU11 software version 2.00
    • Includes GSA28 software version 3.20
    Changes made from version 2.60 to 2.70:
    • Improved GPS aiding from GTN and GNS navigators
    • General improvements to system operation
    Changes made from version 2.40 to 2.60:
    • Added configuration option to disable VLOC course selection on standalone unit
    • Changed VLOC course to use decoded OBS setting from MapMX input, if available
    • Changed flight director TO mode to disengage autopilot when activated
    • Changed flight director GA mode to disengage autopilot if minimum airspeed limit is not configured
    • Improved attitude calculation
    • General improvements to system operation
    • Includes GSA 28 software version 3.20
    Changes made from version 2.20 to 2.40:
    • Added display of CDI scale and GPS navigation source annunciations to HSI
    • Added support for Text Out RS-232 format
    • Added configuration setting to allow display of navigation data with a GDU display is present
    • Added configuration setting to hide HSI page
    • Added configuration setting to hide navigation data
    • Added configuration setting to inhibit user pitch offset
    • Added synchronization of TRK bug between multiple units
    • Improved flight director GPS mode when IFR GPS is navigating a heading leg
    • Improved attitude sensor processing
    • Improved GPS receiver performance
    • Improved GSA 28 software update process
    • Improved visibility of VNAV deviation indicator
    • Improved horizontal and vertical deviation data
    • General improvements to system operation
    • Includes GSA 28 software version 3.20
     
  3. Baron62

    Baron62 Pre-takeoff checklist

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    Thanks. The shop installed version 5.20 so it does have the most up to date software. This actually happened with earlier revisions also.
     
  4. Landing Fees

    Landing Fees Pre-takeoff checklist

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    Not seen the issue in more than 25 flights since install. Are they not powered separately? Seems that if one is drawing power from the other it might not register that it is turned on.
     
  5. arkvet

    arkvet Line Up and Wait

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    My gut says it's an installation issue. Garmin tech support would probably be able to provide a good direction on what the culprit is.
     
  6. WannFly

    WannFly En-Route

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    haven't seen that happening on my set up for regular operation. but I have seen it once when I turned the HSI off, then turned it back on and it didn't came back up until I was holding the button for 5-6 secs
     
  7. Baron62

    Baron62 Pre-takeoff checklist

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    I only have the G5 HSI (no G5 AI) in my panel.
     
  8. DesertNomad

    DesertNomad Pattern Altitude

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    I just saw this with dual G5s running 5.7 - my AI did not power on. I was told by my installer to turn the master off, then turn it back on while holding the power button of the G5 AI. It worked fine. I never tried the "hold for 10 seconds" method.
     
  9. eman1200

    eman1200 Touchdown! Greaser! PoA Supporter

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  10. Unit74

    Unit74 Final Approach

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    Thats BS if i ever heard it. Not the technique, but having to do so on Brand... New.... Gear. I'd be raising hell till it was solved. Emails followed by phone calls so it is documented and "In warranty" is not questioned.
     
  11. GRG55

    GRG55 Final Approach

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    Three or four of the owners on the Husky board I follow have posted about the exact same thing. All seem to be dual G5 installations. The first two posts are similar vintage to the start of this thread...early 2018. In both cases AI didn't power up. Both were told by their dealers to pull the unit out a bit, remove battery for 60 seconds and reinstall. Problem was supposed to be permanently fixed by doing this. Didn't work.

    That's when the "hold power button for 10 seconds" started. Seems to work. Would appear whatever is causing it has not been resolved; most recent post about it was last week. One pilot noticed it seemed to happen consistently on power up after a short power down - eg: start, taxi to fuel pumps and shut down, power up again a few minutes later and the G5s won't start.
     
  12. DesertNomad

    DesertNomad Pattern Altitude

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    I've only had my Dual G5s for 3 flights (over an hour each), as they were installed late 2018. Today at the hangar I needed to reconfigure my 330ES transponder to tell it that I had 1090 and UAT ADS-B in (previously it was mis-configured to only UAT in). The 330ES will not go into configuration mode when the GTN750 is powered on so I needed to pull the breakers for the 750, then turn the master and avionics on. That all worked fine and the 330ES was reconfigured. I then turned everything off.

    When I turned the master back on, only the lower G5 came up and it was in AI mode. A call to my avionics installer suggested the "hold the power button, turn master on" technique. After it came up ok, I turned the master off and back on - both G5s came up ok. Hopefully it was just a side-effect of having the 750 disabled briefly.

    I honestly don't know if both G5s came on when I first turned on the master as I was focused on the transponder. Maybe the top one went blank when I turned on the avionics with the 750 breakers pulled? Dunno.
     
    Last edited: Jan 13, 2019
    aiu0462 likes this.
  13. Baron62

    Baron62 Pre-takeoff checklist

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    Mine just acted up again. It did not power on again when turning on the master 3x. It had not happened for a while. I called Garmin and they stated that it is a known problem. I was instructed to hold the power button for 10 seconds mimimum to reboot the software load with the Master switch power applied. Garmin support told me that this will be fixed in a future software release.
     
  14. Landing Fees

    Landing Fees Pre-takeoff checklist

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    We have seen this two or three times in the 15-16 months we have had dual G5’s. It is as if the bottom one just doesn’t get the calendar invite to fly. Holding the power button resolves the issue and it is very infrequent.