: Every now and then my electric water heater will need
: to be reset by pressing the reser button on it.

: Sometimes this will last for up to a week.

: This is very sporadic. It may not happen for weeks or
: even months.

: Is it an electrical problem or do I need a new water
: heater?

Arthur,
If the water heater gets very hot, and then kicks the reset, it would likely be a bad thermostat. Replacing both upper and lower stats may do it.
Terry