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Solution home DUCTED GAS HEATING (DGH) SERVICE AND INSTALLATION Diagnostics and Specific Fault Finding

TG / TH - Measured output voltage to motor is less than 240 Volts - FC4 Thermistor > 70 deg C during run, FC10 HX OT1 opened, FC19 HX OT2 opened Print

Modified on: Fri, 13 Jun, 2025 at 2:10 PM


TG / TH - Measured output voltage to motor is less than 240 Volts - FC4 Thermistor > 70 deg C during run, FC10 HX OT1 opened, FC19 HX OT2 opened


TH/THM Thermistor & Lead Pt# 611136

THMD Thermistor & Lead Pt# 642796


Information for measuring Fan speed voltage at bottom of solution 


Click here to view YouTube video Spectrolink SCC accessing and clearing fault code history





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Click to view YouTube video on how to Check the duct air / thermistor temperature using a Spectrolink SCC controller


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