No water from WH

Thanks to all that responded, neighbor reports he replaced the check valve, problem solved.

Jim

Jim,
What happened with mine was the little clip that holds the spring on the back of the check valve plunger came off. So what would happen was when I applied pressure to the tank and tried to run hot water the plunger would push out of the check valve and into the rubber at the next junction. Where it would then become a check valve for the other direction. Took about 10 minutes to replace the check valve once I got contortioned just right so I could get the old one loose.

Ok guys, thanks for the help, info passed on to the poor soul working on it.

Jim

The only thing that stops water from coming out the hot outlet on WH tank is the check valve.

3 valve system.....no need for check valve
1 and 2 valve systems use check valve to stop backflow when bypassing WH.

Check valve may flow when the hot outlet line is removed but doesn't flow when connected........then check valve is sticking closed.
Check cold inlet open allowing flow to bottom of WH tank.
Then check that bypass is closed
Open the closest faucet---hot side with water source turned ON
Then tap on hot outlet nipple on tank. Still no flow.....remove check valve (just gut the nipple internals) to get hot water flowing.
You can then replace the check valve later or even better.....Install a shutoff valve in hot outlet line and get rid of them junk plastic cheap check valve.

Put it to where water flows and wait to see if water heats up.the handle is probably on wrong it it is removable and what you think is open is really closed

If the water heater has a one valve bypass. THEN for sure there is a check valve on the hot water outlet side,, This is a must, to prevent it from backfilling when bypassed.

EVEN if it has a 3-valve system it MAY have said check valve.

Now, removing that valve may or may not be doable but you should be able to remove the pex from the outlet of the valve and gut the thing with a pair of needle nose pilars (If you do you must wintereize by the blow out method and/or install a 2nd check valve, you can get check valves all over town, (Plumbing supply or hardware).

I have seen this with my own eyes.

Water is coming to Hot side of faucet when bypass is used, nothing when coming from WH.

Does the water heater by-pass have only 1 valve, or 3 valves? If 3 valves, sounds like only 1 of them is being flipped, causing the water stop completely.