Oais

Ok, what's an oais?

Is this in a boat, a plain or a spaceship? Sorry, but you kind of asked a question without any info. Your Oais or Oasis Hydronic heating unit has it's own fuel filter. When was the last time you replaced the filter and serviced the unit?

It may have quit for many reasons. My first suggestion would be to service the unit. You can buy the kit on Amazon. There is a YouTube video that will walk you through the service. It takes about twenty minutes and requires minimal tools. It includes the new fuel filter, air filter and igniter, which is often the problem.

Amazon

YouTube

If that doesn't solve your issue, give ITR, the parent company for Oasis a call, they'll walk you through diagnosis.

ITR-Oasis

2oldman wrote:
Ok, what's an oais?

it is his water heating and if he has it his floor heating combo.

Heating system in my mountain air , an it does not loop through floor and I did get a tune up kit and installed it

Oasis makes an LP and a Diesel. If yours is Diesel, did you replace the Fuel nozzle? Doug

It is a diesel , a I cleaned nozzle

farmingdad wrote:
It is a diesel , a I cleaned nozzle

I have never worked on an Oasis Diesel, but I have worked on scores Of Aqua Hot Diesels. The Fuel nozzle on an Aquahot CANNOT be cleaned adequately. You replace it. So, do you know if the Oasis fuel nozzle CAN be cleaned or do they require replacement? The fuel nozzle is what gets clogged and stops the flow of fuel. The Manual I found states to replace the fuel nozzle/nozzle filter/o ring for the regular service. Doug

I can see through it. And tech told me it would be ok It isn’t getting fuel

Ah, the tech told me! You certainly cannot see through a Webasto/Agua Hot nozzle so that may be a very different animal. I can't imagine ANY diesel fuel nozzle that you could see through.

Just out of curiosity, do you have enough fuel in your main fuel tank. The Oasis is just like your generator, it will quit drawing fuel at a certain level.