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  1. Z

    Another pool season another heater issue ... Mastertemp 400 wont start, no error codes

    Hi all, you all helped me a LOT last season troubleshooting my Pentair Mastertemp 400 and things were working well at the end of last season.. Well the pool has been opened and I have a new issue that I dont even know where to begin troubleshooting. When I attempt to start the heater (pool or...
  2. Z

    Pentair Mastertemp 400 SFS error, need help

    Hi all, let me start by saying I've spent hours researching and reading up on the issue I'm having with my heater but I have a few questions on how to best proceed (I'm handy enough but pool equipment is new to me). We are in a new home and had the pool opened about 2 weeks ago. We've been using...