Steffes 6140 - Manual (Page 32)

Error Code Description
20 There is no communication occurring between the base I/O board and the processor control
board. A defective board interface cable or an unresponsive base I/O board can cause this.
21 There is no communication occurring with the first relay expansion board. The interface cable
may be defective or the first expansion board may be unresponsive. Check the jumper con-
figuration on the relay expansion board to ensure that J1 and J2 are both in the “OFF” posi-
tion. Verify that the values in L090, L091, and L092 are correct for the application.
22 There is no communication occurring with the second relay expansion board. The interface
cable may be defective or the second expansion board may be unresponsive. Check the
jumper configuration on the expansion board and make sure J1 is “ON” and J2 is “OFF”.
Verify that the values in L090, L091, and L092 are correct for the application.
23 There is no communication occurring with the Steffes Time Clock Module. If this module is
installed, verify the value in L035. If correct, the interface cable or the time clock module may
be defective.
24 Temperature sensor offset/reference is out of range and indicates that one of the sensors or
the core thermocouple may be shorted to ground or the processor control board may be out of
calibration.
25 Power line carrier system is active; however, no good data has been received.
26 Insufficient main control board memory. Contact a qualified service technician.
27 Insufficient permanent memory. Contact a qualified service technician.
28 Permanent memory change has been made. Press the M button to accept. This error mes-
sage indicates a change has been made to the software program; therefore, it is important to
verify that all location settings are correct for the application.
29 On-board communication system is not fully operable. Contact a qualified service technician.
30 Base I/O relay board is in test mode. Check the jumper configuration on the circuit board.
31 Relay expansion board(s) are in test mode. Check the jumper configuration.
39 Indicates the value in Location 13 (L013) has been set to a value greater than the value in
Location 12 (L012). The system will not charge until the value in L013 is set lower than L012.
40 Location values are lost. The EPROM will be updated to the values saved in the main pro-
gram. Clear error by touching the M button on the heater. If this will not clear the error,
replace the processor control board.
41 This error may appear when configuring the heater. Clear error by touching the M button on
the heater. If this will not clear the error, replace the processor control board.
42 Internal communication error. Reprogram or replace processor control board.
43 An attempt to load configuration using LO 98 set to 20, 30, 40, or 50 has failed. All location
values will need to be manually set.
Cold Core Temperature of the brick core is below 40 degrees or the core sensing thermocouple may be
open. Verify that the core thermocouple wiring is connected properly and that the values in
L090, L091 and L092 are correct for the application. If the value in L110 is reading 30, then
the thermocouple is open.
Core Fail Core high limit switch may be open.
PLC Fail The system is configured for power line carrier control; however, is not receiving a valid power
line carrier communication signal.
LoAd CAP All controllable loads have been shed and Maximum Load Capacity is still exceeded.
Appendix
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A.08 Comfort Plus Commercial
Appendix