My shower hot water takes up to 5 minutes to start flowing. I have to turn it on full for it to start, if I don't, it takes longer. When it does finally come on it is full pressure and hot. All other hot water faucets in the house work fine. We have an electric hot water system. Any help would be greatly appreciated. Thanks, Ness.

Is it only to a shower? How about the bathroom sink? Any more information? Back to you, Tom