F1
What This Code Means
High compressor element outlet temperature; High cooling water outlet temperature; High dewpoint; High DP (differential pressure) of oil separator; Fan motor overload; LED (7) is alight; Regulator does not allow to enter a new command which is situated before the last command in the list timewise; Warning message appears on the screen; Indicators (**) are blinking; Programmed start/stop commands are not executed; Shut-down warning screen is displayed; Outlet temperature of the compressor element is too high; Main screen displays '*Serv Requir*'; Service warning message appears; <<Inputs>> is blinking in the Status data menu; <<Plans>> is blinking in the Status data menu; Compressor is shut down; LED (7) blinks; Display shows Element Outlet temperature exceeding maximum limit (e.g., 122 C, Shd Max 120); Motor overload condition; Service warning; Service condition; The screen shows the compressor is shut down (Shd); Compressor element outlet temperature actual reading (e.g., 122 °C) is h
Possible Causes
- •Element outlet temperature reaching or exceeding the shut-down or shut-down warning threshold settings
- •Cooling water outlet temperature or dewpoint reaching warning thresholds
- •Oil separator reaching maximum pressure drop threshold
- •Fan motor overload contacts status change
- •Cooling water outlet temperature exceeds the programmed warning level on water-cooled compressors
- •Regulator programming restriction that prevents inserting a chronological command before the final command in the active sequence
- •Dewpoint temperature exceeds the warning level on Full-Feature compressors (compressors with integrated air dryer)
- •Clock function is not activated
- •Compressor element outlet temperature exceeded the maximum limit (e.g., 116 °C vs Max 110 °C)
- •Programmed service level of a component is exceeded (e.g., maximum pressure drop of the oil separator)
- •Service plan interval is exceeded
- •Too high a temperature at the compressor element outlet
- •Motor overload
- •Service interval reached or service condition triggered
- •Compressor element outlet temperature exceeded the programmed shut-down setting
- •Fan motor overload relay (F15) tripped
- •A parameter reached a programmable warning level below the shut-down level
Suggested Actions
- 1Navigate to Menu -> Modify Params -> Protections -> Element outlet and press Mod (F2) to modify the shut-down (<<Shd>>) or shut-down warning (<<Shdw>>) threshold settings.
- 2Modify the warning (<<Warn>>) protection settings in the parameters menu.
- 3Modify the service warning (<<Serv>>) protection settings for the oil separator pressure drop.
- 4Check the status of the fan motor overload contacts in the compressor conditions parameters list.
- 5Stop the compressor and wait until the compressor has stopped
- 6Switch off the voltage, inspect the compressor and remedy
- 7Scroll through the display until the command before which the new command must be entered is followed by a horizontal arrow.
- 8Press the 'Mod' key.
- 9Change this command to the new command and press the 'Prog' key.
- 10Press the down arrow (↓) key, add the original last command of the list, and press the 'Prog' key.
- 11Activate the clock function (change status to <<Activated>> in the Clock function menu)
- 12Stop the compressor by pressing button 0 and wait until it stops
- 13Switch off the voltage
- 14Inspect the compressor and remedy
- 15Allow warning condition to disappear automatically for the warning message to clear
- 16Stop the compressor and switch off the voltage
- 17Replace the oil separator
- 18Switch on the voltage
- 19Scroll in the Status data menu to <<Inputs>> and press the Rset key to reset the service message
- 20Carry out the service actions related to the indicated plans
Related Atlas Copco Fault Codes
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for F1 on your specific Atlas Copco unit — cited to the OEM manual, not a forum guess.
TRY IT FREE