In brief
Fault code 1E on Toshiba RAV / Estia means: Code 1E is a critical safety: the temperature measured at the compressor outlet (TD sensor) exceeds the limit (often > 110°C). Most common cause: Lack of refrigerant (leak), electronic expansion valve stuck closed, or discharge sensor (TD) offset/defective. First action: Attach gauges to check the gas charge (low pressure too low = leak).. Call a registered engineer if the fault returns after basic checks or involves refrigerant work (F-Gas registered engineer required).
According to the Toshiba Service Handbook, the TD sensor typically reads 50 kΩ at 25°C.
1E • Toshiba • RAV / Estia
Fault code 1E Toshiba: Excessive discharge temperature
Code 1E is a critical safety: the temperature measured at the compressor outlet (TD sensor) exceeds the limit (often > 110°C).
Source: Toshiba Service Handbook
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Written and field-validated by heat-pump, air-con and heating installers. Cross-checked against more than 50,000 documented fault sheets.
What does fault code 1E on Toshiba mean?
Code 1E is a critical safety: the temperature measured at the compressor outlet (TD sensor) exceeds the limit (often > 110°C).
Lack of refrigerant (leak), electronic expansion valve stuck closed, or discharge sensor (TD) offset/defective.
Symptoms
- Poor performance before the fault
- Pipes very hot to the touch
- Compressor shutdown
Diagnosis
1. Pressure check
- Attach gauges to check the gas charge (low pressure too low = leak).
2. TD sensor check
- Measure the TD sensor on top of the compressor (typically 50 kΩ at 25°C for Toshiba, note varies by model).
How to reset fault code 1E on Toshiba?
Find and repair the gas leak, then recharge. If the charge is correct, replace the TD sensor or expansion valve.
When should you call an F-Gas engineer?
Code 1E most often appears during air conditioning operation, especially on RAV / Estia. Poor performance before the fault
Field context
Code 1E most often appears during air conditioning operation, especially on RAV / Estia. Poor performance before the fault
Frequently asked questions
What does code 1E mean?
Code 1E is a critical safety: the temperature measured at the compressor outlet (TD sensor) exceeds the limit (often > 110°C).
What is the most common cause of 1E?
Lack of refrigerant (leak), electronic expansion valve stuck closed, or discharge sensor (TD) offset/defective.
How to diagnose 1E in the field?
Pressure check: Attach gauges to check the gas charge (low pressure too low = leak).
How to resolve fault 1E?
Find and repair the gas leak, then recharge. If the charge is correct, replace the TD sensor or expansion valve.
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