Wunderground Usage Alert

Problems
#1

I received a Wunderground Usage Alert today on system ID 36437. It hit 503 calls before the key was disabled.

I don’t think I’ve used this key in any other application and current PVOutput poll interval is 5 minutes (288 per day).

Any suggestions?

#2

The key used for the system 1********f is only being called every 5-minutes from PVOutput.