Control panel message Description Recommended action
55.02.YY Outgoing Parity Error To
continue turn off and then on
There is a DC controller outgoing parity error. 1. Turn the product off and then on.
2. Perform an engine test. See
Engine-test
button on page 386.
3. Verify the connectors on the DC
controller.
4. Replace the DC controller. See
DC
controller PCA and tray on page 270.
55.03.YY No Engine Response To
continue turn off and then on
DC controller no response error. 1. Turn the product off and then on.
2. Perform an engine test. See
Engine-test
button on page 386.
3. Verify the connectors on the DC
controller.
4. Replace the DC controller. See
DC
controller PCA and tray on page 270.
55.04.YY Communications Timeout To
continue turn off and then on
There was a DC controller communications
time out.
1. Turn the product off and then on.
2. Perform an engine test. See
Engine-test
button on page 386.
3. Verify the connectors on the DC
controller.
4. Replace the DC controller. See
DC
controller PCA and tray on page 270.
55.05 ENGINE FIRMWARE RFU ERROR Firmware upgrade failed. 1. Turn the product off and then on.
2. Remove any third-party hardware.
3. Resend the firmware upgrade.
56.01 - Illegal input To continue turn off
and then on
There was an illegal input. 1. Turn the product off and then on.
2. Remove any third-party hardware.
3. Attempt the remote firmware update
again.
4. Replace the DC controller.
56.02 - Illegal output To continue turn off
and then on
There was an illegal output. Turn the product off and then on.
57.03 Error To continue turn off and then
on
The cartridge area cooling fan (FM2)
experienced an error.
1. Reconnect the connector J26 of the
cartridge fan, connector J262 on the
high voltage power supply D PCA, and
connector J114 on the DC controller
PCA.
2. Immediately after turning on the
product, measure the voltage between
the connector J262-1 and J262-3 on the
high-voltage power supply D PCA. If the
voltage changes from 0 V to
approximately 24 V, replace the
cartridge fan.
Table 7-12 Control-panel messages (continued)
ENWW Control-panel messages 451
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