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GE Zoneline VTAC Error Codes: Meanings & Safe Checks
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1 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 1 as: Inside-fan fault: the fan motor is not moving at the commanded speed… Search/display variants: 1 caution 2 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 2 as: Outside-fan fault: the fan motor is not moving at the commanded speed… Search/display variants: 2 caution 3 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 3 as: External-thermostat wiring fault: the applied signal has remained… Search/display variants: 3 caution 4 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 4 as: An inside thermistor is not reading a valid temperature. Search/display variants: 4 caution 5 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 5 as: An outside thermistor is not reading a valid temperature. Search/display variants: 5 caution 6 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 6 as: Compressor fault: no temperature change was detected after one minute of… Search/display variants: 6 caution 7 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 7 as: Reversing-valve fault: the expected temperature change did not occur… Search/display variants: 7 caution 8 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 8 as: Software fault caused by a stack overflow. Search/display variants: 8 caution 9 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 9 as: Indoor-coil freeze fault: coil temperature fell below the 34°F freeze… Search/display variants: 9 caution 10 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 10 as: Heat-pump overload fault: inside-coil temperature exceeded 131°F. Search/display variants: 10 stop-use 11 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 11 as: Overheat fault: incoming air is at least 95°F and too hot to run the… Search/display variants: 11 stop-use 13 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 13 as: Heater-airflow fault. Search/display variants: 13 caution 17 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 17 as: Outlet-thermistor fault caused by an open or short circuit. Search/display variants: 17 caution 18 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 18 as: Outlet-air over-temperature. Search/display variants: 18 stop-use 19 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 19 as: Outlet-air over-temperature. Search/display variants: 19 stop-use 25 The official 2021 GE Zoneline VTAC Technical Service Guide 31-9366 identifies 25 as: Abnormal-defrost fault after five consecutive defrost cycles failed to… Search/display variants: 25 caution