Recent content by Johnskoc

True! I pulled the board and see some corrosion behind a couple of solder points on pins. I guessing the board is bad as you stated.

That seems to be the case. I recorded the panel on start up:

Quick update. The LCD flashed numbers for a bit and it read 107. I also dropped a new Thermistor in and the heater isn't firing up at all now.

Thanks for the greetings! Thankfully I'm pretty versed in water chem. But I'll give it a quick read.

Thanks for the reply. The Pool On LED is lit. The Heating LED is lit during the 15 minute heat period. The E/T says 87 which agrees with my thermometer. And which agrees with my ScreenLogic App. It's the LCD panel that seems to be failing. It was displaying temps previously...maybe a week ago...

Long time lurker and beneficiary of the info. First time poster. Best wishes to all during this time. We need our pools working well now more than ever!

My MT400 is a couple of years old but has gotten a lot of work! It began heating intermittently and by reading posts and answers here I determined that the thermal regulator was bad. It has been replaced. However the heater is still not working properly. Here are the symptoms: 1. It begins...