Furrion Tankless Water Heater not working

[dvanderwall]

We've been camping in our new GD 5th wheel since July and have had no trouble with our Furrion tankless water heater until now. It just doesn't fire up. Contacted We have CoachNet and I called, they stepped me through some things, that didn't work, but couldn't find any mobile techs for me, so said to wait til Monday. So, cold showers for now. Here's what we did:

1. checked we have propane. Yes
2. checked fuse in Furrion unit when removing outside cover. Is good.
3. checked to make sure switch was "on" in the unit.
4. checked to make sure control panel is on. Yes, and shows no error codes.
5. checked breaker panel for water heater. Is okay.
6. shut down shore connection, put trailer in "storage" mode, waited 10 minutes, started everything up again. No luck
7. Then checked to make sure no loose wire or connector when looking inside and taking cover off. All looks good.

Any suggestions?

 

[dvanderwall]

Oh, and forgot to say, we're in Middlebury IN to go through a GD plant tour (lol)

 

[Second Chance]

I'm sorry you haven't gotten any responses on this issue. The tankless water heaters are relatively new and many of us on the forum have no experience with them. You'll probably be in touch with Grand Design today since you're there, so please let us know how this problem is resolved. It will provide good information for those who come along after you.

Rob

 

[Ynot4me2]

I have absolutely no experience with these but have read that if the water pressure is low, the heat won't kick on. Do you use a preset pressure reducer or an adjustable one?

Sent from my SM-P610 using Tapatalk

 

[Ultratravler]

Can't wait to hear what the problem was. Just bought our first camper with a Furrion tankless water heater. Any others with comments, good or bad, about these heaters? Thanks.

Dave

 

[CamperGal73]

We just purchased our first Grand Design, a 2022 303RLS Reflection. On our first trip everything went well except our Furrion tankless water heater heated the bathroom shower & sink water but took forever to heat the kitchen sink water. We ran a ton of water and it never even got warm at that sink. Has anyone had this problem? We love everything else about the fifth wheel!!

 

[jamesdn]

We just purchased our first Grand Design, a 2022 303RLS Reflection. On our first trip everything went well except our Furrion tankless water heater heated the bathroom shower & sink water but took forever to heat the kitchen sink water. We ran a ton of water and it never even got warm at that sink. Has anyone had this problem? We love everything else about the fifth wheel!!

Wife had the same problem with ours until we realized that the faucet was plumbed backwards. Hot and cold positions were reversed to what we were used to.

 

[CamperGal73]

Wife had the same problem with ours until we realized that the faucet was plumbed backwards. Hot and cold positions were reversed to what we were used to.

Thanks so much Jamesdn, We will check out how our faucet is plumbed the next time we camp in a couple weeks. I thought about trying that but didn’t want to waste a ton of water seeing we didn’t have a water site. Thanks!

 

[GNJones]

We just purchased our 2022 unit last week! Furrion tankless water heater works in bathroom but intermittent in kitchen sink. Same as Campergal73 post. Our lines are not reversed as in another post. Did You get yours fixed, and what was the problem?

 

[Casa_Woody]

Power to the water heater control panel is from the switch on the heater. From your write up it appears you have DC power.
Try setting up in dry camping mode (make sure to turn water pump on) and in city water mode if available. Set water temp to 120-deg

?? Do you have good water pressure (hot and cold) when in both city and dry camping modes.
?? Does the water heater attempt to ignite? Is there a clicking sound from the igniter?

If you have a volt meter you could check for 12VDC at various point. Sorry...I don't have an elec diagram to follow. You would have to chase cables.

If the igniter is clicking and propane is not available (i.e. the unit does not light) E1 will appear on the display and a beeping sound should be heard. This Does not appear to be your issue.

Sounds like a potential control panel failure.

 

[Casa_Woody]

Found the wiring diagram in the owners manual. If you have a volt / ohm meter it would be a good place to start troubleshooting.

 

[Soundsailor]

We just purchased our 2022 unit last week! Furrion tankless water heater works in bathroom but intermittent in kitchen sink. Same as Campergal73 post. Our lines are not reversed as in another post. Did You get yours fixed, and what was the problem?

Hey [MENTION=51057]GNJones[/MENTION], looks like this is your first post, welcome to the forum. When you say hot water is intermittent in the kitchen, could you be a bit more specific? With tankless water heaters, the heater only works when the water is running. So it might seem like it is intermittent if you run the hot water for a short time and then turn it off. It may appear cold after that until it has been running long enough for the heater to come up to temperature and then the cold water in the lines to run out. This on/off approach keeps the heater from using gas to keep the water warm even when you're not using it, but can be disconcerting when the use pattern is different than a heater with a tank. As far as the difference between the kitchen and the bathroom is concerned, there's just a longer line from the heater to the kitchen so it takes a little longer for the hot water to come up.