Address

4209 Hillsdale LnGarlandTX 75042, USA

Valentine Aviation​

The Stormscope Specialist

WX-500 Troubleshooting


The best starting point for troubleshooting the WX-500 is with the error codes and the LEDs on the front of the processor.



LED status


LED 1
on  normal operation
off  failed operation; it is not booting up

LED 7
off  normal operation
on  failed operation; something has failed internal or external

LED 8
on/off once per second  normal operation
on  failed operation; it is the test signal between the processor and antenna; if it is on the test is not running  



​Error codes


​Access the fault codes per the instructions in the pilots manual for your MFD


All WX-500 functions are controlled through the available MFD. The many capabilities of the WX-500 allow MFD manufacturers to create screens compatible with the various functions of their display. Each MFD will show the information consistent with the capabilities of that particular display. Errors may be worded similarly, but not exactly. Contact us for error codes not listed.



ERROR 08. See service bulletin SB805-11500-2

Software upgrade to 1.04 for noise reduction in composite aircraft.


ERROR 16. Antenna Fault.

Antenna or Antenna wiring Weather mapping is inhibited.
a. Check antenna wiring for opens and shorts.
b. Use test cable to isolate between antenna and aircraft wiring.

ERROR 17. Processor Fault.

No test strikes, antenna in noisy location, or faulty antenna. Weather mapping is inhibited.
a. Check antenna wiring for opens and shorts.
b. Check for presence of noise using built-in NOISE MONITOR or a WX-SM skinmapper.
c. If airborne near Annapolis, may be ground transmitter.
d. Fault will clear automatically if interference subsides.

ERROR 18. Processor Fault.

Invalid test strikes, antenna in noisy location or faulty antenna. Weather mapping is inhibited.
a. Check antenna wiring for opens and shorts.
b. Check for presence of noise using built-in NOISE MONITOR or a WX-SM skinmapper.
c. Fault will clear automatically if interference subsides.


ERROR 19. Processor Fault.

Main Processor or Antenna in noisy location. Weather mapping is inhibited.

a. Check for presence of noise using built-in NOISE MONITOR or a WX-SM skinmapper.

b. If airborne near Annapolis, may be ground transmitter.

c. Fault will clear automatically if interference subsides.


ERROR 20. Configuration Changed.

Antenna location (top/bottom, determined by processor wiring) changed since system was last powered up. This may occur the first time the system is powered on in a new installation or after the configuration wiring is changed.

Select Antenna Location

a. That corresponds to Stormscope system antenna location.

b. If jumper does not agree with user selection, the error message remains displayed and status will change to “fatal error”.

c. Check jumper selection in mating connector assembly (refer to paragraph 2.9, table 2-2). d. At MFD, select antenna location.


ERROR 22. Invalid XYZ Input.*

The system is configured for synchro heading but the XYZ synchro signals are not present or are out of specification.

Heading stabilization is not available.

a. Check wiring between heading system and WX500 processor.

b. Check configuration wiring to make sure system is set up for proper heading type (stepper, synchro or serial).

c. If heading signals become valid, the system will recover automatically.


ERROR 23. Invalid Heading Ref.*

The system is configured for synchro heading but the heading reference (400 Hz) is not present or out of specification. Heading stabilization is not available.

a. Check wiring between heading system and WX500 processor.

b. Check configuration wiring to make sure system is set up for proper heading type (stepper, synchro or serial).

c. If the reference signal become valid, the system will recover automatically.


ERROR 24. MIC KEY STUCK.

Mic key (inhibit line) has been asserted for at least 60 seconds. Weather mapping is inhibited.

a. Check inhibit line wiring.

b. If inhibit line not used, leave it unconnected.

c. Check power to comms radio; if off, the radio may be asserting the inhibit line.