Originally Answered: I just replaced my water heater because i had no hot water, i still have no hot water. please help?
Don't lose it.
It's probably something very simple and overlooked.
Who installed the new water heater?
Did you do it yourself?
If not, get whoever put it in back and make him fix it.
If you did it, there's a checklist you can go through.
Check the obvious first. Did you get the right heater? Water on? Thermostat up high enough?
Does the thing kick on at all?
When you first installed it, did it kick on and warm up the water at all?
If it's gas, you should see it working.
Are you getting any water at all from the hot water side in your sinks? Bathtubs?
If you give more information, I can better help you fix the problem.
But losing it won't solve anything. It'll just make it worse.
Okay, so the pilot is lit. It's gas, and you have the gas on. I'm assuming the tank is full. The next thing to check is your thermostat. Turning it up should make it kick on. Does the pilot go out if you turn up the thermostat?
This isn't probable, but I once came across a natural gas water heater hooked up to a system that ran on propane. If this is the case with you, DON"T USE IT. Shut off the gas and replace it. It's a very dangerous and explosive situation. It's probably not the case with you but I thought I'd mention it.
I think moonjumper hit it on the nose.
It must be the fill tube.
When you (or whoever put it in) carted it home, did you lay it down? Or bump it in any way?
The tube could have popped off or cracked.
That's why you should never lay them down, among other things.
Basically, the fill tube brings the incoming cold water down to the bottom of the tank where the heat is. If it wasn't there, the cold water would come in at the top and go right over to the outlet without getting hot.
The way I see it, you have two choices.
Either take it back to where you bought it and exchange it,
or fix the problem yourself, or have it done.
Personally, I'd exchange it because you might have gotten a defective unit. It might not even have a fill tube.
If you opt to repair it yourself, shut off the water, disconnect the inlet flex and nipple, and then you should be able to remove the fill tube by sticking your finger into the opening and pulling out the tube. It's blue or white and it's just slid in there loosely. Check it out for cracks or breaks. If it's broken, you'll have to order the part from the heater manufacturer which will take some time.
So I'm back to advising you to exchange the whole unit.
Good luck to you.