Rectifier Fail alarm indicates a failure in the rectifier component. The manual's first action is: “1. Verify that there is no obstruction of the fan inlet. 2. Toggle the ON/STBY switch into the STBY position and then back into the ON position. 3. If the problem is not corrected, replace the rectifier.”
- Model
- General Electric 4812/24
- Display shows
- Rectifier Fail (ALM)
- Type
- Alarm code
- Source
- Manual p. 107
What ALM means
Rectifier Fail p. 107
Common causes
- Thermal alarm: •Excessive ambient temperature •Internal rectifier failure p. 107
- Internal rectifier failure p. 107
- Fuse alarm: •DC fuse open •Internal rectifier failure p. 107
What to do
- 1. Verify that there is no obstruction of the fan inlet. 2. Toggle the ON/STBY switch into the STBY position and then back into the ON position. 3. If the problem is not corrected, replace the rectifier. p. 107
- 1. Place the ac circuit breaker for the rectifier in the OFF position. 2. Remove the rectifier from the shelf. 3. Wait for 30 seconds or until all front panel display LEDs have extinguished. 4. Replace the rectifier. 5. Return the ac breaker to the ON position. 6. Place the rectifier ON/STBY switch into the ON position. 7. If the problem is not corrected, replace the rectifier. p. 107
- 1. Toggle the ON/STBY switch into the STBY position and then back into the ON position. 2. If the problem is not corrected, replace the rectifier. p. 107
If ALM is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact General Electric service.
This page summarises what the manufacturer’s manual says about ALM; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with General Electric. Found a mistake? Report an error.