Hot Water just a trickle; where is the issue?

[HelloFreedom.us]

In our 2005 Montana 3400RL, the hot water only trickles out a tiny bit, or nothing at all, unlike the cold which is at full strength. Has anyone experienced this and might know where we would look to solve the issue?

[beeje]

Maybe in bypass mode for winterizing.?
Check all fixtures, May have debris in fixture head.?
Bad check valve at heater (if it has one) ?

[dieselguy]

Is it all hot water outlets or just one? If all ... like mentioned there is a check valve right at the outlet of the hot water heater that can come apart blocking flow. If it is just one outlet ... check that faucet handle's cartridge or washer.

[Carl n Susan]

Hi Brett! The best guess is the check valve on the output side of the water heater. Either remove it (if you never winterize) or replace it. Finding it may be an issue as I have no idea where the water heater is on your rig.

[Mudchief]

Like Carl states above it is mostly the check valve. I have had enough go bad that I carry a spare with me.