Ok so at least some consistency, room fan has stopped working.. permanently.
I think i am going to give up at this point i only paid a few hundred for the…

Yeh in Melbourne.
The problem as usual is the fault is intermittent, which in my experience is costly to 'attempt' to diagnose.
I write this as the heater is running fine,…

Well the pressure switch is doing its job starts and runs every time, which it didn't do before.
Now the room fan stops intermittently. But if i let it cool for…

Hi all
As the above says. It's a Rinnai Inbuilt Gas Heater, model is REH-300. The room fan will randomly stop. Then safety kicks in and whole heater shuts down.
Heater…

Well i installed a new pressure switch and started straight up, seeing as it hasn't worked for the last 3 days i think that solves it!
Thanks for your help guys.
During…

No idea.
Can email you the circuit diagram if you like...

good vid on pressure switch
http://www.youtube.com/watch?v=DwwuqZYrHSk
my pressure switch
http://i.imgur.com/0QFu3aV.jpg
http://i.imgur.com/qXo2cHG.jpg

So yesterday I gave the pressure switch a good wack with the butt end of my screwdriver, then it started! So i turned it off and it started again and…

My understanding is that it wouldn't fire up and run at all if the thermocouple was done, is this incorrect?

Melbourne.

Hi all
So where do i start!!
I have a 2004 Rinnai High Efficiency 30 Inbuilt Gas Space Heater. Unit was working great and still does intermittently.
Worked fine for as long…