Hi. I'm hoping to get some help with my master temp 400. When the heater turns on the display will not progress past displaying 888. The service system light is on. I was thinking it was the pressure switch so I replaced that, but it did not fix the problem. I have turned my filter to recirculation and back washing to see if I made any difference but it did not. Any ideas?
Maatertemp 400 will not progress past 888 display
- Thread starter Jake02
- Start date
Does it show 888 then 128 then rX where X is the software revision number?
What LEDs are lit on the circuit board?
Do you have automation?
www.troublefreepool.com
What LEDs are lit on the circuit board?
Do you have automation?
Pentair MasterTemp Heaters - Further Reading
www.troublefreepool.com
Thanks for the reply. It does not move onto the 128, rxx . All of the LED'S on the board are lit up yet the service heater light is not onDoes it show 888 then 128 then rX where X is the software revision number?
What LEDs are lit on the circuit board?
Do you have automation?
Pentair MasterTemp Heaters - Further Reading
There should be a sticker with a barcode and the manufacturing date.
In any case, I suspect that the circuit board is probably bad.
If the membrane pad is in poor condition, replace that at the same time.
When is the last time that the heater was running properly?
In any case, I suspect that the circuit board is probably bad.
If the membrane pad is in poor condition, replace that at the same time.
When is the last time that the heater was running properly?
