I have a Whirlpool 40 gallon water heater, when attempting to light the burner, the pilot light goes out when the reset button is released. (After holding the reset button down for the required amount of time). Does anyone know what's going on?

Sounds like the thermocouple is bad, usually an easy replace.

Sorry to see you're having problems! Can you contact me directly so I can help?
Www.whirlpoolwaterheaters.com/help
Thanks! ~ Chris
American Water Heater, authorized licensee for Whirlpool Water Heaters