When I turn on my spa which I use a Pentair Master Temp 400 it does not turn on right away, first shows ADO on the screen of the heater, then SFE then turns on finally. Temperature always starts at 60 at 70 degreases I increase it to 102 degrees it will then proceed to to 102 shut off and never come on again until I increase it again to 102 and the same thing happens again. Please help?
Pentair Master Temp 400 Codes?
- Thread starter Damian218
- Start date
The "Off" button of the membrane pad is probably sticking.
Replace the membrane pad.
Mastertemp 400 Control Board
I’m having issues with my mastertemp 400 control board. When I turn the heater on, from the app, the control board attempts to turn on, but then errors out and the display turns off. I can then manually turn on the heater from the control board interface, but it does not turn back on once the...
www.troublefreepool.com
SF1 is not an error code; it is a program setting.
The membrane pad probably has a defective "Off" button.
_____________________________________________________________
1. Turn the power to the heater ON.
2. Press and hold the OFF button on the membrane pad until the 3-digit display shows “Ad0” or “Ad1” (about 10 seconds).
3. Release the button and then press it momentarily.
The 3-digit display will now show either “SF0” or “SF1”.
Board must be set to “SF1” for the heater to operate with a Stack Flue Sensor installed.
4. If the display reads “SF1”, it is correctly set.
If it reads “SF0”, use the arrow buttons on the membrane pad to set it to read “SF1”.
5. Momentarily press the “OFF” button to exit the program.
https://www.pentair.com/content/dam...ift-asset-library/pool-spa/S381(11-16-04).pdf
The membrane pad probably has a defective "Off" button.
_____________________________________________________________
1. Turn the power to the heater ON.
2. Press and hold the OFF button on the membrane pad until the 3-digit display shows “Ad0” or “Ad1” (about 10 seconds).
3. Release the button and then press it momentarily.
The 3-digit display will now show either “SF0” or “SF1”.
Board must be set to “SF1” for the heater to operate with a Stack Flue Sensor installed.
4. If the display reads “SF1”, it is correctly set.
If it reads “SF0”, use the arrow buttons on the membrane pad to set it to read “SF1”.
5. Momentarily press the “OFF” button to exit the program.
https://www.pentair.com/content/dam...ift-asset-library/pool-spa/S381(11-16-04).pdf