Programmable Display Option is enabled. If the error occurs mul-
tiple times in one cycle, the error audit counter will be increment-
ed only once per cycle. The control will continue displaying the
error message until the error is cleared.
When the Reset Shorted Error code is received, the error will be
treated as a fatal error. This error indicates that the alarm reset
signal to the ICM has been detected.
When the Hardware Fault Error code is received, the error will be
treated as a fatal error. This error indicates that the ICM has de-
tected an internal control failure. When this error is set, the con-
trol will terminate operation and display the error.
Heat Error
Gas Models
Each gas machine is equipped with an Ignition Control Module
(ICM) that is responsible for opening the gas valve and igniting
the gas to heat the machine. When there is a call for heat, the gas
valve is opened and the ICM attempts to ignite the gas to heat the
machine. If the ICM fails to ignite the gas, the ICM will send an
ICM Lockout Alarm to the control. When the control receives the
ICM Lockout Alarm, the control will increment the Auto-Ignite
Retries Error audit counter. The lockout alarm can be reset if re-
tries remain. The amount of retries the control allows is program-
mable.
When this error is set on IEC machines, the error will be treated
as a fatal error. These machines are equipped with an ICM that
needs to be manually reset. When the control receives the ICM
lockout alarm, the control will show the Message Page with
"ICM Error 4". In order to reset the alarm, the service door
switch must be opened. Once the service door is opened, the dis-
play will prompt the user to reset the ICM. When the ICM is re-
set, the control will remove the error message and prompt the
user to resume the cycle. The user can continue to reset the ICM
until there are no more programmable retry attempts or the gas
ignites. If the ICM fails to ignite the gas on the last attempt, the
control will pause the cycle once more while displaying "ICM Er-
ror 4". Once the alarm is reset, the control will terminate the cy-
cle and display "Heat Error".
On machines equipped with an ICM that does not need to be
manually reset, the control will automatically clear the ICM lock-
out alarm and continue to try and ignite the gas until there are no
more programmable retry attempts or the gas ignites. If the ICM
fails to ignite the gas on the last attempt, the error will be set and
treated as a cool down error. When the cycle is completed, the
control will display "Heat Error".
Electric Models
If the control determines that the electric heat contactor is stuck
closed, the control will terminate the cycle and set the error. In
this condition, the error will be treated as a fatal error displaying
"Heat Error".
IR Communications Error
This error occurs if there is a problem with communication be-
tween the control and an IR device. The control displays "IR
Comm Error (XXX)" where "XXX" indicates the error code val-
ue. Refer to
.
Error Code
Description
01
Error detected when sending
data
02
Time-Out Error
03
Invalid Command Code
05
Invalid or Out of Range Data
09
CRC-16 Error
0A
Framing Error
0C
Time-Out Exceeding While
Getting Packet
0E
Encryption Error
0F
IR Disabled in Control Pro-
gramming
Table 12
Machine ID Chip Error
This error occurs if the control detects either a communication er-
ror with the machine ID chip or a control configuration error. The
control displays "Machine ID Chip Error (XXX)". "XXX" indi-
cates an error code value. Refer to
.
Error Code
Description
Type
05
Read Error
Notification
06
Write Error
Notification
31
Product byte 1 mis-
match
Power Up
32
Product byte 2 mis-
match
Power Up
33
Product byte 3 mis-
match
Power Up
39
CRC error with un-
configured control
Power Up
FF
No ID chip con-
nected and no con-
figuration in control
Power Up
Table 13
Diagnostics Menu
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Part No. 70600001ENR6
Summary of Contents for SG025D
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