AERCO Electronic Controls System (ECS) - Manual (Page 77)

Electronic Control System (ECS) and Type CXT-E Valve
APPENDIX A
VD2: 02/28/14 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Page 77 of 82
AC-105 OMM-0003_0D
Eurotherm 2408 Diagnostic Alarms (Continued)
DISPLAY MEANING WHAT TO DO`
E r r 1 Error 1: ROM self-test fail Return Controller for repair
E r r 2 Error 2: RAM self-test fail Return Controller for repair
E r r 3 Error 3: Watchdog fail Return Controller for repair
E r r 4 Error 4: Keyboard failure. Stuck
button or button was pressed
during power-up Switch power off and then on, without
touching any of the controller buttons
E r r 5 Error 5: Faulty internal
communication Check printed circuit board
interconnections. If the fault cannot be
cleared, return the controller for repair.
E r r 6 Digital filter chip faulty or loose
board inside controller Return Controller for repair
E r r 7 PV ID failure Return Controller for repair
E r r 8 Module 1 ID failure Faulty or loose module, or isolation
problem
E r r 9 Module 2 ID failure Faulty or loose module, or isolation
problem
E r r A Module 3 ID failure Faulty or loose module, or isolation
problem
d C F DC output failure Return Controller for repair
O P E n
Secondary Input Missing or
Disconnected
This error may result from no power to the
flow meter (check for green power light on
rear of meter or 0-5V flowmeter signal
connections), or a disconnection of the Molex
connector between feedforward sensor and
the Eurotherm controller.
9.6.1 Clearing Hardware Error (Hw.Er) Display
To clear a Hardware Error and reset the Temperature Controller, proceed as follows:
1) Simultaneously press the Page ( ) and Scroll ( ) buttons on the Temperature
Controller.
2) Using the Up (
▲) arrow button, change the password to “8”.
3) Simultaneously press the Page ( ) and Scroll ( ) buttons again and observe the
Temperature Controller display. The top line will display “8” and the bottom line will display
“NO”.
4) Press the Up (
▲) arrow button to toggle the display from “NO” to “YES”.
5) Simultaneously press the Page ( ) and Scroll ( ) buttons to “Reset” the
Temperature Controller and clear the Hardware Error.