THC-W0148
THC_w0148_refrigerantLow
Also written as THC_W0148 / THC W0148 / THC_w0148_refrigerantLow / thc_w0148_refrigerantlow
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does THC-W0148 mean?
Tesla warning code in the THC (THC) module. The THC_w0148_refrigerantLow? warning was first released in FW 2017.24+ The THC_w0148_refrigerantLow alert shall be set if the following conditions are met for 60 seconds: THC is initialized The ambient temperature sensor is not faultedThe ambient temperature > 0 deg C Refrigerant discharge temp > 0 deg CThere are no refrigerant discharge temperature alerts (THC_a0137_rfrgDisTemp or THC_a0138_rfrgDisTempRange) There are no refrigerant suction temperature alerts (THC_a0142_rfrgSuctPress) or THC_a0145_rfrgSuctPressRange) The refrigerant discharge pressure < 0.25 bar The THC_w0148_refrigerantLow alert shall be cleared if the following conditions are met for 30 seconds: THC is initialized The ambient temperature sensor is not faulted The ambient temperature > 0 deg C Refrigerant discharge temp > 0 deg C There are no refrigerant discharge temperature alerts (THC_a0137_rfrgDisTemp or THC_a0138_rfrgDisTempRange) There are no refrigerant suction temperature alerts (THC_a0142_rfrgSuctPress) or THC_a0145_rfrgSuctPressRange) The refrigerant discharge pressure > 1.5 bar? Note: This warning will be customer facing in 2017.50.
Original Description
The THC_w0148_refrigerantLow? warning was first released in FW 2017.24+ The THC_w0148_refrigerantLow alert shall be set if the following conditions are met for 60 seconds: THC is initialized The ambient temperature sensor is not faultedThe ambient temperature > 0 deg C Refrigerant discharge temp > 0 deg CThere are no refrigerant discharge temperature alerts (THC_a0137_rfrgDisTemp or THC_a0138_rfrgDisTempRange) There are no refrigerant suction temperature alerts (THC_a0142_rfrgSuctPress) or THC_a0145_rfrgSuctPressRange) The refrigerant discharge pressure < 0.25 bar The THC_w0148_refrigerantLow alert shall be cleared if the following conditions are met for 30 seconds: THC is initialized The ambient temperature sensor is not faulted The ambient temperature > 0 deg C Refrigerant discharge temp > 0 deg C There are no refrigerant discharge temperature alerts (THC_a0137_rfrgDisTemp or THC_a0138_rfrgDisTempRange) There are no refrigerant suction temperature alerts (THC_a0142_rfrgSuctPress) or THC_a0145_rfrgSuctPressRange) The refrigerant discharge pressure > 1.5 bar? Note: This warning will be customer facing in 2017.50.
Affected Tesla Models
What You May Notice
- THC alert: The THC_w0148_refrigerantLow? warning was first released in FW 2017.24+ The THC_w0148_refrigerantLow alert shall be set
- Touchscreen may show an error for one or more apps or settings
- Feature may restore itself after a reboot
How to Diagnose and Resolve
- 1 Perform a soft reboot (hold both scroll wheels for ~10 seconds)
- 2 Check for pending OTA software updates
- 3 If the issue persists, schedule a service appointment
Severity Notes
THC-W0148 is a Warning in the THC system. Schedule service soon. Monitor your vehicle for additional warnings.