EEPROM Write Failure
system
Description
The unit cannot write information to be stored in main microprocessor memory, and it alarms only.
Activation Conditions
There is an error in the ability to write information to be stored in the main microprocessor memory.
Unit Behavior
Alarm only
Reset Conditions
Alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Corrective Actions
1. Check Microprocessor a. Check setpoint. Must be between -22 and +90°F (-30 and +32°C). b. Enter new setpoint. Must be between -22 and +90°F (-30 and +32°C). 2. Reset Microprocessor a. Place the START/RUN-OFF switch in the OFF position. Disconnect positive battery cable, remove F7 fuse or unplug 1MM connector, wait 20 seconds and reinstall. Then place the START/RUN- OFF back in the START/RUN position. The microprocessor powers up OK and the latest setpoint appears in the display. b. If this alarm remains active, download data and replace the main microprocessor module (MM). Refer to Section 1.5.