2021 400 limited hot water

System

This discussion was created from comments split from: 2021 Tab 400 water heater..

Mdlawson79

I'm currently having an issue with my water only being hot in all sinks and shower for about 10 seconds. The 21 doesn't havethe bypass switch unless I overlooked it. Does anyone know what might be going on? I have the aldi system on correctly at the panel,I had a Tab 320 and it was fine . Here is a picture if anyone sees anything not right please let me know.
I'm sorry my phone somehow posted this 3 times. And I wasn't sure how to delete the other post.

pthomas745

On the bottom picture, there is the round valve with the arrows.  That is the mixing valve, and it may need to be adjusted to bring the water temperature up.  Here is a thread:

https://tab-rv.vanillacommunity.com/discussion/2676/little-hot-water/p1

Sharon_is_SAM

Your settings are for a city water connection.  So, since you have had a 320 before, you know how to fill the Alde water tank.  Have you adjusted the mixing valve?  Also, what is the Alde Flo pump set at?

Mdlawson79

I haven't adjusted the mixing valve, I will try that now. I will check to see what the pump is set at as well. What do you recommend it be set at?

Sharon_is_SAM

I think both of the 400 pumps are set at 2.  Do you know how to correctly adjust the mixing valve?
https://tab-rv.vanillacommunity.com/discussion/5018/no-hot-water-at-kitchen-sink-bathroom-sink-had-hot-water#latest

Mdlawson79

No, I was reading how to do it, I think it looks doable for me. One more question does the 21 have a bypass valve?

ChrisFix

@Mdlawson79
I had to adjust my t@B 400's mixing valve 3/4 turn past the factory stop. Be careful as you can make the water hot enough to scald...so test it carefully after you adjust it.
Also, do you know how to turn on the 'shower boost' setting in the Alde control panel? This will allow nearly continuous hot water for the 30 minutes it cycles through.

Mdlawson79

I'm going to adjust the valve today and try that,yes the alde panel i can operate.

Sharon_is_SAM

@Mdlawson79 - the 2021 400 model does not have a separate Alde bypass valve.  

Mdlawson79

thanks for the replies, I will try to adjust.

Denny16

Mdlawson79 said:

No, I was reading how to do it, I think it looks doable for me. One more question does the 21 have a bypass valve?

Yes, it is the Red valve handle on the Nautilus control panel is the Alde bypass valve.  When set to Vertical it is in normal hot water operation mode.  So you have that set correctly. 

 

Try just turning the mixing valve up to its hot position without unscrewing the center screw first, to see if that get you enough hot water.  If not, then go to step 2, and loosen the screw to get a hotter water setting.  Try setting the Alde control panel hot water setting to shower, to get max hotvwater.
cheers