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Rick
Rick, Construction Supervisor
Category: Plumbing
Satisfied Customers: 19491
Experience:  Licensed Master plumber with 40+ yrs. experience.
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Question re: gas boiler. Q130SP getting error Fill on my

Customer Question

question re: gas boiler. Q130SP
getting error Fill on my customers rinnai gas boiler after restart.
I know there are diagonostics that can be run to reset.
can you help?
Submitted: 11 months ago.
Category: Plumbing
Expert:  Rick replied 11 months ago.

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

This is a water pressure too low error. You need to bump the system pressure up to more than 12 psi

Customer: replied 11 months ago.
cool, how do I do that?
Expert:  Rick replied 11 months ago.

There should be a feed valve on the cold water line feeding the system (see attached pic for typical). It should automatically keep water pressure above 12 psi. Seems it's not working. I need to know which brand & model you have. If it's not the same one in the pic then I need the brand and model of the one you have. They are all similar shape but a different color. If you can't give me the model then I need a pic. You can post one here by clicking on ADD FILES next to the SEND button.

Customer: replied 11 months ago.
let me take a look, one minute
Expert:  Rick replied 11 months ago.

Ok

Customer: replied 11 months ago.
Hi Rick, I just do not know where it is. I looked and looked.
Customer: replied 11 months ago.
I understand your answer, but not able to determine where the feed valve is.
Expert:  Rick replied 11 months ago.

Give me a pic of the piping around the boiler. I have heard of cases where they haven't been installed but it's a rarity here in the States while it's common in the UK

Customer: replied 11 months ago.
one sec
Expert:  Rick replied 11 months ago.

Ok

Customer: replied 11 months ago.
I just emailed the photo. Not sure if that is what you need.
Expert:  Rick replied 11 months ago.

You need to post it here. I can't get email and if you emailed it to customer service I won't see it until tomorrow. Click on ADD FILES next to the SEND button to post a pic here.

Customer: replied 11 months ago.
one sec, have to upload it to my computer
Expert:  Rick replied 11 months ago.

Ok

Customer: replied 11 months ago.
do you see it?
Expert:  Rick replied 11 months ago.

I don't see it. Where is the expansion tank?

Customer: replied 11 months ago.
hmm. let me go look.
Expert:  Rick replied 11 months ago.

Piping diagram shows it piped into the expansion tank connection

Customer: replied 11 months ago.
here you go. Note the pressure is well above 12 on the dial...
Expert:  Rick replied 11 months ago.

That's the well tank not the expansion tank for the heating system

Expert:  Rick replied 11 months ago.

It's probably piped into one of the orange PEX lines I can see in your first pic

Customer: replied 11 months ago.
you are right. I see the expansion tank. There is not dial or indicator of pressure. I think it all near the boiler itself.
Customer: replied 11 months ago.
I am not sure we can solve this, tho I know you are trying... and I appreciate it.
Expert:  Rick replied 11 months ago.

There is no dial near the expansion tank but the feeder may be nearby. There's only so much I can do from here. All I can do is identify the problem and tell you what you need to do to correct it which I've done. The rest is up to you. I'd appreciate a favorable rating. BTW pic of the most common brand of expansion tank attached

Customer: replied 11 months ago.
that is what we have for an expansion tank.
Expert:  Rick replied 11 months ago.

I stayed with you well past my usual log off time of 7 pm Eastern. I thought you had given up we can continue if you like.

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