Girard Tankless Water Heater Problems

[NMWildcat]

Originally Posted by dblr

We have had our RS now for it's 3rd season and have been happy with the tank less system and have not had any issues with it, but starting this year the water seems to be only the hottest in the shower but it's cold out and the water coming in is colder. I hope when things warm up it settles back to what we are use to, am I missing something that needs adjusted or tweaked, I did raise the control setting on the panel in the bathroom.

Our on demand doesn't have any settings like yours, but when we have very cold input water we use just the hot water knob (as normal) and turn the flow rate down as low as possible without turning it so low that the on demand kicks off. Water stays in the heater longer. Works for us to get hot showers.

[GFAR]

Originally Posted by SomedayIsToday

We had same problem until I read some other comments on another related post about water pressure. As soon as I increased the pressure to between 55-60 psi we had no more issue with that problem.

Good luck!

Larry

How did you increase water pressure? Stared mine up today at home would heat and then stop because of water flow, call tech at Girard he said not enough water flow to make heater fire and run! How can you adjust?
Thanks!
GARY

[SomedayIsToday]

Originally Posted by GFAR

How did you increase water pressure? Stared mine up today at home would heat and then stop because of water flow, call tech at Girard he said not enough water flow to make heater fire and run! How can you adjust?
Thanks!
GARY

I use an adjustable water pressure regulator like the Renator M11-0660R

Larry

[GFAR]

Where did you get? About how much do they cost? I guess it go on waterhose before hooking to rv!

[SomedayIsToday]

Originally Posted by GFAR

Where did you get? About how much do they cost? I guess it go on waterhose before hooking to rv!

I got mine from Amazon but they are available at just about any RV supply store. I think I spent about $40 on mine.