Search results

  1. M

    Mastertemp 400 won't heat

    Alright! I think I'm in business. I turned the valve the 90 degrees and the heater ran (in pool mode) for a good 5 1/2 minutes with no problems. I"m out the door for the day, but I will run it again as soon as a I can, and in spa mode, but I think it's working. Thanks for the help!
  2. M

    Mastertemp 400 won't heat

    Not sure. It was at around 2600 rpm's. I bumped it up to 3100 last week on advice that could be the problem. Would you suggest adjusting the RPM's back down and rotating that valve?
  3. M

    Mastertemp 400 won't heat

    Wow. ok. Is that as simple as turning it 180 degrees the opposite way? Or a quarter turn? That is a valve I've never touched.
  4. M

    Mastertemp 400 won't heat

    I posted a few more of the whole system.
  5. M

    Mastertemp 400 won't heat

    Here's a few more.
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  17. M

    Mastertemp 400 won't heat

    Thanks. The wiring looks fine, a little dusty, but intact with no bare wire showing. I was pretty cautious ensuring the wires were placed back correctly. In fact, the wiring for one wasn't long enough to connect it to the incorrect part.
  18. M

    Mastertemp 400 won't heat

    Here are some photos. It is still not letting me upload videos.
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  26. M

    Mastertemp 400 won't heat

    Hard liquor it is. So, same deal as before. There is something of a high pitched sound at various points during the cycle. It's not overwhelming, but I can hear it. However, I am finally getting a "service heater" light at the end of the cycle, and the "HLS" light is displayed on the control...
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  29. M

    Mastertemp 400 won't heat

    No, the temp display shows the water temp. It no longer spikes. I tested the new thermal regulator before I installed it and it worked. I also tested the old one and it did not work. No photos and here is where I'm at: Pool mode and heater on: 52 seconds of heat/hot exhaust followed by thirty...