Cause
- Superheat has remained below 1.66 C (3 F) degrees for five minutes continuously while compressor running. Compressor drawing more than 2.0 amps, compressor pressure ratio is greater than 1.8, and Electronic Expansion Valve (EEV) is at 0% open.
Components | Troubleshooting | Corrective Actions |
Electronic Expansion Valve (EEV) |
Check the operation of the EEV using Cd41. |
Replace EEV if Defective. |
Evaporator Temperature Sensor(s) ETS & ETS1. |
Verify accuracy of temperature sensors, refer to Sensor Checkout Procedure Section 6.24. |
Replace ETS or ETS1 if Defective. |
Evaporator Fans | Confirm fans operating Properly. |
Replace fan(s) if defective, refer to EVAPORATOR FAN MOTOR ASSEMBLY Section 6.15. |