Alarms
When the unit is not operating properly, the microprocessor records the alarm code, alerts the operator by displaying the Alarm symbol, and shuts the unit down. Press and release the Select key to display the current alarm code. If there is more than one active alarm, all the alarm codes on the unit can be viewed in sequence by pressing and releasing the Select key. Refer to (Alarm Code Descriptions).
Auto Start (after an alarm)
When an alarm stops unit operation, the Alarm icon appears on the Standard Display. After the condition that caused the alarm is corrected and the alarm has been cleared, the unit will start automatically. Refer to (Alarm Code Descriptions).
Manual Start (after an alarm)
When a Manual Start alarm stops unit operation, the Alarm icon appears on the Standard Display with no other icons present.
After the condition that caused the alarm is corrected, the On/Off key on the In-cab Control Box must be pressed, in order to start unit operations. Once the unit is powered back up, the alarm must be cleared. Refer to (Clearing Alarm Codes).
Should a P1E alarm occur, return air temperature read error alarm code --- will appear on display together with the alarm symbol, instead of the return air temperature reading.
Press and release the Select key to display the current alarm code. If there is more than one active alarm, all the alarm codes on the unit can be viewed in sequence by pressing and releasing the Select key.