Demand, tankless water heater

[AJS]

Does not always start with water flow. Water pressure & flow seem fine.
When it doesn't fire off, we have to turn faucet on an off several times to get it to fire.
Not sure how to check electrical circuits

[pconroy]

Make and model of the tankless unit???
My Girard tankless has a reset button that I need to press from time to time.

[Paulgpr]

I have that issue occasionally I find by simply turning shower on and another faucet on gets the heater going then shut off faucet and heater stays on. I wish I could go swap out for old style tank this tankless thing tanks forever to warm up and if any adjustment to temperature makes tankless go cold then you wait n wait for hot water to heat up and fills up your holding tank quicker

[hawkmaster]

Hi AJS,
When my 2021 Alante 27a was about a year old i experienced sporadic hot water for about a day, then none. After a call to Girard it was found to be a faulty hot water temp. probe, which they sent to me and i installed it.
I've also learned(at least on my coach) that the gswh-2 is very sensitive to water pressure fluctuations. So when running hot water off of shore pressure(even though i allways use a pressure regulator)i would get moments of cold water during showers. For the last 6 months i've been running water by filling the fresh water tank then using water via the pump. I know i'll burn out the pump sooner but i think its worth it for unlimited, consistent hot water.
Hope this helps
Pete
__________________
Pete
2021 Alante 27A

[Finally Able]

I have posted my own experiences with this issue several times. Check your shower hose to see if it has a restriction inside to make it low-flow. Ours did, and I replaced the shower hose and head with a standard flow model -- no problems since.

(Of course, if your issues affect all faucets, then this won't be a global fix -- our sink faucets all worked fine. In that case, try filling the fresh-water tank and pumping from that, as has been suggested above.)

[AJS]

Thanks Pete. Good info.