water heater bypass valve location

I'm  a newbie who needs to check (and I suspect close) the water heater bypass valve. I have a 179, I've read  that it is "under the bed".  Do I need to unscrew and remove a wood panel directly under the mattress, if yes the front or back panel? Or should I remove the panel on the side of floor storage space under the bed  next to the heater  (this smaller panel is perpendicular to the mattress under the bed.)

-thanks

Originally posted by iamsister7 Where is the bypass in the 180? We're new, too, and don't have any idea. From the outside vent location, we assume it must be under the bed, but don't want to remove the whole bed to find out if it's not!!! LOL

Yes, that's where it is for your floor plan.

You can access from the rear storage compartment if you are an excellent contortionist and do not suffer from claustrophobia.  We ended up making measurements and then carefully cutting the luan under the mattress for an access area (6" x 8 ") directly above the 3 valves.  Now it is just a matter of lifting the mattress, sliding the access cover open and then reaching in and changing valve positions.  Doing it this way takes about a minute, once you've done it a couple times.

Thanks. With the info you all shared, we'll get 'er done when the time comes. I appreciate you all!