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00248 CONFIG MODE / HP2 ERROR
• ACTIVATION: EEPROM Configuration is out of range.
• UNIT CONTROL: Shutdown and alarm.
• RESET CONDITION: Auto reset only when valid info is entered.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (See Note 1 in Notes Section.) Operate the unit through the appropriate modes to see if any active
alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check Microprocessor
a. Check setpoint setting. Must be between -22 and +90°F (-30 and +32°C).
b. Check Functional Parameters. All settings must be valid.
2. Check Software Revision
a. Check microprocessor software revision. Upgrade to the latest revision of software. The latest
revision may contain Configurations that were not present in older revisions.
b. Check Functional Parameters. All settings must be valid. Send desired settings to microprocessor
using the latest version of TRU-Tech to a USB data transfer device. (Do NOT use the display
mounted keys.)
c. Check Configurations. All settings must be valid. Send desired settings to microprocessor using
the latest version of TRU-Tech to a USB data transfer device. (Do NOT use the display mounted
keys.)
3. 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. 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. Alarm 00248 remains active. Download data and replace the main microprocessor module (MM).
Refer to Section 5.5.
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