Oasis Zone Fault

[Neal]

Nope, just one big happy friendly gang here. You did get your RVF tattoo right???

 

[MemoriesByTheMile]

@Jim there is logic in the systems that at a certain temp somewhere 40 or below they will auto switch to furnace. Mine does it at 32 which is too low but I verified it works.

Changing the pumps in your coach would not be hard as you have big basements. The pump location is accessed from the passenger side and you'll likely have to remove one of the wooden "faux" walls on the back side of OASIS or shore power reel, I can't remember which, for me it was the bay forward of the pegboard.

You'll need something to clamp off the hose(s) to avoid fluid loss. I use these (get 2):

Amazon.com

ITR Heat is great to talk to if you need troubleshooting advice. I've done far too much triage in mine from electrical shorts, failed pump (so far only 1) and then of course the annual service kits which if you don't know if yours has been done I recommend picking up a 5 year kit.

Itrheat

Phone: 800-993-4402

5 year service kit (other options are 1 and 3 year kits which have reduced parts for service):

https://www.amazon.com/dp/B01N75RKTE/?tag=rvf01-20

YouTube has videos on performing OASIS services.

Carry a spare pump at all times, they can't be trusted! They went to a newer version which supposedly is better. I got mine from ITR but others found replacements which sound good but I have yet to need.

You can download the Oasis troubleshooting manual:

ITR Oasis Service & Troubleshooting Manual

ITR Oasis Service & Troubleshooting Manual

rvforums.com

Have spade connectors and spare fuses on hand as well.

https://www.amazon.com/gp/product/B08BZ8BLJN/?tag=rvf01-20

https://www.amazon.com/gp/product/B06XY2V532/?tag=rvf01-20

If you need more Century Transfer Fluid which your reservoir should be in the chassis battery bay (rear passenger side) make sure you put the same kind in that you have already but it should be this:

https://www.amazon.com/dp/B01BDWQXM2/?tag=rvf01-20

+1 on service kit

We carry spares for everything on the 5 year service kit. When we get flame out errors, simple 10 minute swap of a nozzle or filter and are back in service again.

 

[Jim]

They are not very effective below 40 but should work.

I understand, but they would probably be whole lot better than the one (1) working hydronic zone. Problem is, they've been working at home just fine. Get to GA and now, nothing!

Having never had an Oasis system, I don't understand how the heat pumps on the roof work in conjunction with the Oasis. Seams reasonable to assume that they can be turned on/off independently, but I'm not seeing anything on the SilverLeaf that allows that.

Under "Climate" -> "Oasis" I can turn off the burner and AC1/2. But that seem to do anything except turn off the heating supply to the Oasis and does nothing to turn on the roof units. What am I missing?

 

[Neal]

OASIS supplies heat to provide hot water and also circulates the antifreeze (heating fluid) through the furnace blowers - that's all OASIS does.

The heat pumps on the roof are not connected to OASIS in any way. But there is logic in the thermostat system that is outside of your t-stat that will auto switch HEAT PUMP units to FURNACE (OASIS) when the outside temp is such that HEAT PUMPS can no longer work. The rule of thumb for manually managing this is to use heat pumps when the outside air temp is above 40F.

Some prefer furnace over heat pump based on noise levels and what you may prefer for sleeping.

If using the FURNACE for heat there is a switch on the front dash, likely below the dash radio, for the furnace blower (low, mid, high) - I recommend HIGH as all that glass area is hard to heat.

I'm not sure if you got your floor heating issue resolved but that gives you another option for heat which many prefer, but hot water is on its own pump and not related.

Comprendez?

 

[Jim]

The rule of thumb for manually managing this is to use heat pumps when the outside air temp is above 40F.

Yes, indeed. But how does one manage this? I can turn the Oasis off, but how do I turn the heat pumps on?

 

[Neal]

There should be an option in your climate control to select heat pump vs. furnace.

 

[Jim]

There should be an option in your climate control to select heat pump vs. furnace.

Haven't been able to find that elusive little bugger as yet.

 

[Neal]

Answered - Using Oasis instead of heat pump?

Just out of curiosity, I'm wondering if it is possible to use Oasis for heat instead of the heat pumps? I know that Oasis will switch in when the outside temperature drops to 40 degrees or so, but is there a way to manually enable Oasis at other times? On our MADP, the climate control is...

rvforums.com

 

[Jim]

Answered - Using Oasis instead of heat pump?

Just out of curiosity, I'm wondering if it is possible to use Oasis for heat instead of the heat pumps? I know that Oasis will switch in when the outside temperature drops to 40 degrees or so, but is there a way to manually enable Oasis at other times? On our MADP, the climate control is...

rvforums.com

Well alright! We're cooking with gas (electricity) now! Hardly straight forward though. Thank you, Neal.

 

[Jim]

OK, I understand it now. Although rather mechanical, it works well enough if you know where the pitfalls are.

[Configurable Settings]
Primary = heat pump (on roof)
Secondary = Oasis
Both = both.

But if you have a faulted zone in the Oasis heat and you set the configuration to "both", your going to have a battle as the Oasis will pump cold air into the room, while the heat pump dumps hot air in from the top.

In making my situation work last night, and to keep the Oasis from dumping cold air into the faulted rooms, I went into the climate setting and turned the heat off in those rooms. That left the one working zone (the salon) working overtime to keep the coach warm. Now that I've switched to Primary Only, I needed to go back into Climate and turn the two faulted rooms back on.

And life is good again. Well, except that the wind is blowing like a small hurricane and it's very low 40's out there. But it's nice and toasty inside!