There are few things more enjoyable than a comfortably warm (or nice and hot) shower to clean off and refresh. There is also nothing worse than being in the middle of your cozy rinse and having the water suddenly turn icy. If this has happened to you, there were likely several choice words uttered before the water returned to normal and you continued with your shower, believing the sudden temperature change to have been a mere fluke.
The truth is that this was an attempt at a wake-up call from your water heater! Your water heater may be struggling with the job it is meant to do and, if this incident is ignored, may fail to produce any hot water later on.
There is a way to avoid this situation altogether though: maintenance!