Views:
Revision Date: <<11/18/2025>>
Author:  <<Tom Danaher>>
PVA-1000 Application and Network Troubleshooting
(Updated November 14, 2025)
 
ProblemSolution
Windows 11 unable to load WUSBI driverTurn off ‘Memory Integrity’ (in Settings > Core Isolation)
App shows ‘Paused’ with I-V unit power light on; ‘Ready’ with light off (state flipped from normal)
 		Hard reset on I-V unit: Press & hold power for min. 12 seconds
 
App crash on launchTry a resolution step below, then test app.  If it fixes the problem, no need to do the remaining steps:
App crash at new project selection
App crash on module selection
Invisible keypad when defining location or module parameters, revealed as pointer is swept across keypad
Hardware issues with I-V UnitHard Reset--press & hold power for min. 12 seconds, or up to 30 seconds if necessary. This resets network & restarts the device.
 
Hardware issues with SolSensorHard Reset--press & hold power for min. 12 seconds. This resets network & restarts the device.
 
Charging / Power issues

*Note: Both I-V units and SolSensors with very low batteries may require 1-2 hours to start charging normally, and then 6-8 hours to reach full charge. (This is common after longer periods of storage.)

*Always leave both devices plugged in and charging overnight before use.

*Charge devices units monthly when not in use.
  • Connect to devices, then go to Utility > Battery Level: I-V unit & SolSensor will charge up to approx. 4Vdc (while connected to chargers)
  • In-use, fully charged I-V unit will start out at ~3.2Vdc; SolSensor will start at ~3.24Vdc
To improve charging reliability of older units:
Windows maintenance / Windows Update
  1. ‘Check for Updates’ in the Update & Security window (Settings>Update & Security).
  2. Run all recommended Windows Updates, including feature updates to current versions of Windows 10 or Windows 11
  3. Go to ‘Advanced Options’, turn on ‘Receive updates for other Microsoft products when you update Windows.
  4. Run ‘Check for Updates’ again – install all available updates.
  5. Run ‘Disk Cleanup’; select ‘Clean Up System Files’.
  6. Run ‘Disk Defragmenter’ (or ‘optimize’ for SSD)
  7. Reboot PC

Contact Fluke Support: 800-873-5853.
Also, please send a copy of the PVA.log file to tech.support@fluke.com
Example of PVA.log file location (View options in File Explorer need to include ‘Hidden items’):
 
“[Top-of-Thread]” Error message on application startup (app fails to load):
A screenshot of a computer error<br><br>Description automatically generated with low confidence

Confirm details in kiva error log:
A screenshot of a computer<br><br>Description automatically generated with medium confidence


Solution: delete PVA configuration file in This PC / C: / Users / (user) / AppData / Local / Solmetric /:
A screenshot of a computer<br><br>Description automatically generated with low confidence

 
<<Article content here...>>
<<Note: use Arial font 14 for the body of the KB.  This translates into an easy-to-read view
    when accessed on my.fluke.com>>
 
Keywords: PVA-1000,PVA,SOLAR,Solmetric