Rowe BC-1200, Field Service Manual And Parts Catalog

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Section 4: Troubleshooting
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Chart 080 - Shutdown - Out Of Service Lamp Lit
Display shows: BUCKET PWR FLT
CAUTION:
Installing a new CCC without determining the cause of the failure may destroy the new board. Use
an ohmmeter to determine if it is safe to install a new CCC. If you use an ohmmeter, check for shorts
(less than seven ohms) between the V/O wire, Y/BR, and BL/W or Ground.
One or more of the bucket solenoids was energized during STANDBY. Most likely, an
incorrect change load is in one of the buckets.
Press the FUNCTION button on the CCC. Does the message reappear?
Check the R/B, Y/BR, BL/W, and V/O wires
from the CCC to the bucket solenoids for
an intermittent short to Ground.
NO
Unplug P2 from the CCC and press the
FUNCTION button. Does the message
reappear?
YES
Turn the power OFF. Check the R/B, Y/BR, and BL/W wires
at J2 and the V/O wire at J204-1 for a short to Ground. Does
a short exist?
NO
Unplug P4 from the CCC and
press the FUNCTION button.
Does the code reappear?
YES
Replace the CCC.
See CAUTION.
NO
Replace the CCC.
See CAUTION.
NO
Unplug P402 from the dispenser.
Does the short disappear?
YES
Replace the dispenser.
YES
Unplug P402 from the power control
center. Does the short disappear?
NO
NO
Check resistor R813 on the power supply
circuit board for open connections.
IF OK
Check C816 on the power supply board for
excessive leakage.
IF OK
Replace the CCC. See CAUTION.
YES
Replace the power
control center.
YES
Short in the main
machine harness.
NO