Appendix – Grain Systems PNEG-1499 User Manual
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15
PNEG-1499 High / Low Thermostat
APPENDIX
NOTE:
Refer to Documentation provided by component manufacturer for troubleshooting and mainte-
nance of the Thermostat Control including sensor data.
Form No. 7515006-001 Rev B.
Troubleshooting Error Messages.
E1
Appears when either the up arrow or down arrow key is pressed when not
in the programming mode.
To Correct: If the E1 message appears even when no keys are being
pressed, replace the control.
E2
Appears if the control settings are not properly stored in memory.
To Correct: Check all settings and correct if necessary.
EP
Appears when the probe is open, shorted, or sensing a temperature that
is out of range.
To Correct: Check to see if the temperature is out of range. If not, check
the probe for damage by comparing it to a known ambient temperature
between -30°F and 220°F. Replace the probe if necessary.
EE
Appears if the EEPROM data has been corrupted.
To Correct: This condition cannot be field repaired. Replace the control.
CL
Appears if calibration mode has been entered.
To Correct: Remove power to the control for at least five seconds.
Reapply power. If the CL message still appears, replace the control.