stack flue sensor

  1. K

    Pentair Mastertemp 400 Stack Flue Sensor Immediate Shut down

    Hello, I have a five year old Mastertemp 400 Pool/Spa heater setup that was getting E06 error (first error ever with heater). THEN: Replaced Sensor with aftermarket, and cleared the E06 code, but heater would shut off with SFS code on back of control board after 1-2 minute run. I ohm tested...
    • km1222
    • Thread
    • mastertemp 400 sfs sfs pentair 400k btu stack flue sensor
    • Replies: 1
    • Forum: Everything Else
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    Pentair Mastertemp 200 Stack Flue Sensor Resistance

    Found a SFS (Stack Flue Sensor) error on my control board. Being an electrician I checked the resistance (Fluke 1187) on the sensor with an outside air temp of 70 degrees F and found 2.8 kOhms. Through this forum I found out 2.8 kOhms didn't seem right as someone previously posted it should be...
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