Pentair natural gas heater error AGS

Pentair came out and looked at it.
The gas line was not feeding the unit enough gas to fire.
Of course the plumber disagrees. ;)
At this point we are frustrated as all get out. Blame game always sucks but mostly sucks for the homeowner!
 
  • Wow
Reactions: JamesW
Pentair came out and looked at it.
The gas line was not feeding the unit enough gas to fire.
Of course the plumber disagrees. ;)
At this point we are frustrated as all get out. Blame game always sucks but mostly sucks for the homeowner!
That's not going to cause these errors.
Just got home and here is what I found .. the heater had a AGS error
History errors were AFS
AGS
AFS
PS
AFS

The flame says n/a
Did they check the gas pressure?

What specifically did they say was wrong with the gas supply?

I would verify the voltage and flow.
 
That's not going to cause these errors.

Did they check the gas pressure?

What specifically did they say was wrong with the gas supply?

I would verify the voltage and flow.
I wasnt home but my husband was. They said that the gas supply force was low and the plumber said nope its fine but is switching out the regulator next week. Plumber doesnt want to change the line because then it will have to much gas going to the heater. What a mess.
 
They said that the gas supply force was low and the plumber said nope its fine but is switching out the regulator next week.
What reading did they get for static and dynamic?

What readings did the plumber get??

Low gas pressure will not cause the errors reported.

Plumber doesn't want to change the line because then it will have to much gas going to the heater.
You can't have too much gas going to the heater; this makes no sense.

You can have too much pressure, but the line can't be too big.

The line can only be too small, not too big.

I'm not buying the gas pressure problem.

Unless they can tell you the readings, I would not believe they know what they are talking about.

In my opinion, it is a voltage or flow issue.
 
If the line is low pressure (14" w.c maximum), the line should be 1" I.D up to 100 feet total equivalent length or 1.25" I.D up to 300 feet total equivalent length.

For a two-stage line, the first stage (2 psi) can be 1/2" up to 150 feet total equivalent length to the regulator and then 3/4" up to 10 feet into the heater.

1663282974014.png

1663283053168.png
 

Enjoying this content?

Support TFP with a donation.

Give Support
We now have a working heater!
Plumber/Gas contractor came to the house and changed out the regulators. The heater was not receiving the appropriate gas flow.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.