Recent content by Gregpool

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    Pentair master temp 400 not turning on

    Thanks again. A bit off topic but what is your recommendation for bypassing the heater when not in use? I have read of course it is better to bypass for the efficiency impact on the pump and filtration. Should I leave the heater partially open to get some flow or completely bypass when not in use?
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    Pentair master temp 400 not turning on

    Thanks, do you recall if the temp should display on the heater control panel even when using the automation?
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    Pentair master temp 400 not turning on

    Another update, put panels back on and the heater still kicked on via automation. In spa mode the heater control panel was still showing pool mode, but interesting enough the display wasn’t showing the temp or r14 code (light was on it though)when it powered on. Again not sure that matters or if...
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    Pentair master temp 400 not turning on

    Turned on the heater for the pool through automation and nothing happened again. This time though I saw the r14 and then the current water temperature on the heater control panel display, which wasn’t displaying before now. I selected temp up and it let me change the temp there, which was set...
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    Pentair master temp 400 not turning on

    I will check for more diagnostic leds later today and report back, thank you!
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    Pentair master temp 400 not turning on

    Yes, I pressed pool on for at least 5 seconds and the pool mode light came on as well as the display on the heater. No messages on the display and the blower ignition sequence still didn’t start.
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    Pentair master temp 400 not turning on

    I havent tested the sensor, but even with old sensor in the heater stopped turning on completely. The heater would turn on for about 1-2 minutes and then throw the sfs error on the back of the panel. Shortly after that it stopped turning on at all with the bad sensor still in. The same...
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    Pentair master temp 400 not turning on

    Thanks for the reply. The blower doesn’t begin to turn on, nothing happens other than the lights come on the control panel and then shuts off, nothing happens after that, no other error codes or a service heater light. I did have the service heater light a couple of days ago with the sfs light...
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    Pentair master temp 400 not turning on

    My Pentair master temp 400 heater had the error for the stack flue sensor, which I replaced(second time in just over 1 year). When investigating the issue(open panels on the heater) I had also pressed the buttons on the heater control panel to try to get it to show more information like the...