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My name is ***** *****. I have a boiler question, I had to…

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Hi - My name is ***** *****. I have a boiler question

Contractor's Assistant: Thanks. Can you give me any more details about your issue?

I had to turn off my main water valve for an hour this morning Water is back on, but I have no heat or hot water Buderus boiler says P10 H7

Submitted: 2 years ago.Category: HVAC
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Answered in 23 minutes by:
2/21/2016
HVAC Technician: HVAC Guru, HVAC TECH replied 2 years ago
HVAC Guru
HVAC Guru, HVAC TECH
Category: HVAC
Satisfied Customers: 18,756
Experience: 20yrs in the HVAC industry with certificates and degrees.
Verified

Hello and thanks for using this service, if you have been waiting do not worry or get upset I am just one of the techs on here and I try to get to as many customers as I can and I just picked up your question now.

Have you tried to turn the power off to the unit for a minute and turn it back on to clear the code?

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Customer reply replied 2 years ago
Yeah - I did. But I realized that I had turned the two valves underneath the boiler off
Customer reply replied 2 years ago
I just turned those back on. I still have the P12 H7 code
Customer reply replied 2 years ago
But now, the LED under the flame icon is on.
HVAC Technician: HVAC Guru, HVAC TECH replied 2 years ago

That code is a low pressure code what is the system pressure?

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Customer reply replied 2 years ago
It looks like it's 12
Customer reply replied 2 years ago
12 Psi according to the valve
HVAC Technician: HVAC Guru, HVAC TECH replied 2 years ago

Yes that is low can you add water to the system to raise the pressure?

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Customer reply replied 2 years ago
Sure- how do I do that?
HVAC Technician: HVAC Guru, HVAC TECH replied 2 years ago

Somewhere in your system you have fill valve/prv and a back flow preventer. It usually connects between the expansion tank and air eliminator. There is a lever that will allow you to manually add water to your system. If adding water to your system becomes a regular event, you have a leak that should be addressed. Adding a gallon or so a year is not such a big deal. You need about 18-20PSI...if you have a big leak you have a bigger issue just so you are aware.

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