Clunking noise when heater running
- Thread starter Ukiwis
- Start date
SFS error on Pentair MasterTemp 250 and coil replacement
My Pentair MasterTemp 250 stops heating and is giving an SFS error. I have replaced both the thermister and the Flue Stack Sensor but have the same issue. The heater fires and exhaust temp slowly climbs to 480F then shuts off. I placed a warranty claim and provided all this information and...
www.troublefreepool.com
Hot tub issue when using jet pump
My MasterTemp 250 heater works fine and heats the hot tub to the set point (104F). It cycles on and off as the temperature changes while it's being used. The problem I have is only when the jet pump is running. When the jet pump is turned on, the temperature being reported slowly increases to...
www.troublefreepool.com
I think that your previous issues are all due to the plumbing problem of both pumps fighting each other for water flow on the suction and the return.
A separate jet pump needs its own suction and return.
Since you do not have the correct plumbing, you need to remove the separate jet pump.
It seems like the tech sort of understands the problem, but they really don't know what to tell you.
When was the pool installed?
It should be fixed by the builder as a warranty since it is due to a bad original workmanship issue.
The workmanship is a bad installation due to a bad design or a flawed installation.
It is essentially an "Errors and Omissions" issue, which is when a professional makes a professional error.
Is the heater the original heater?
Can you show pictures of the spa including all suction and return fittings?
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No, nameplate shows it is from 2013 so I'm guessing it was replaced 8 years ago. I purchased the home almost 3.5 years ago.
Here you go. I included a video of what happens when the Jet Pump turns on. All jets have increased flow when the Jet Pump is running.
You have 4 suction inlets.
Are you sure that both pumps pull from all 4?
Are you sure that both pumps pull from all 4?
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It looks like 11 returns.
Are you sure that water comes out of all 11 for each pump?
Are you sure that water comes out of all 11 for each pump?
You don't know that "It has been working perfectly fine for 16 years".
All you know is the 3.5 years that you have been there and your previous posts indicate issues with the heater.
How would you know if it was fine before you moved in?
Because the previous owner said so?
They had a motive to say that everything was just fine.
Hot tub issue when using jet pump
My MasterTemp 250 heater works fine and heats the hot tub to the set point (104F). It cycles on and off as the temperature changes while it's being used. The problem I have is only when the jet pump is running. When the jet pump is turned on, the temperature being reported slowly increases to...
www.troublefreepool.com
Feb 12, 2020
Maybe the plumbing was originally separate and it was combined for some reason by the previous owner?
There's 10 and yes, water comes out every single one of them.
You are 100% correct. I made an assumption it worked fine for the past 16 years. You are also correct in that I have had issues and I had completely forgotten about the 2nd one you linked to. That was resolved by setting the filter pump speed to 3450 rpm for "Spa Heat" so maybe that's worth a shot again.
Based on the suction and return fittings, it seems like the plumbing was originally separate, but at least the returns were combined for some reason.
I would try to see if you can separate the filter and jet return lines so that the filter and jet pump are not fighting each other.
The suction might be separate lines.
If yes, then that's good.
If they are combined, then I would see if they can be separated.
I would try to see if you can separate the filter and jet return lines so that the filter and jet pump are not fighting each other.
The suction might be separate lines.
If yes, then that's good.
If they are combined, then I would see if they can be separated.
