Water heater

[Ed cassidy]

I have 2006 cavaler the water heater lights but it only gets luke warm. You have a split second of hot water then nothing but luke warm. What do I need to look for. It seams to go thru the cycle lights stays on for a long time. But when it goes out nothing but luke warm water comes out.

[THenne1713]

TIP: Check the OUTSIDE SHOWER VALVES, if the water is turned OFF at the hand-held, but faucets are ON, the Hot/ Cold can MIX