Intermittent problems can lead to false conclusions.
Repeat the tests several times. Watch the D-180 for spar pin status.
Don't bother reporting single flash of spar warn light when master switch is operated.
Relays have a failure mode where residual magnetism causes delayed dropout.
Relay contacts can stick together due to pitting caused by arcing.
Another test: Find the brown/blue wire that connects to a spar pin switch.
Monitor the voltage on that wire as each magnet is moved out of position.
When the brown/blue wire goes high, the spar pin warn lamp should illuminate.
Repeat the tests several times. Watch the D-180 for spar pin status.
Don't bother reporting single flash of spar warn light when master switch is operated.
Relays have a failure mode where residual magnetism causes delayed dropout.
Relay contacts can stick together due to pitting caused by arcing.
Another test: Find the brown/blue wire that connects to a spar pin switch.
Monitor the voltage on that wire as each magnet is moved out of position.
When the brown/blue wire goes high, the spar pin warn lamp should illuminate.