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Bryant Single Package Rooftop Electric Cooling/Gas Heating Units 580G User Manual

Page 34

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Table 12 — Control Board LED Alarms

LED

BLINKS

ERROR

CODE

DESCRIPTION

TROUBLESHOOTING

COMMENTS

1

Normal Operation

The control board flashes the red LED in one-second intervals
when the board is operating properly. Make sure DIP switch 3 is
closed.

2

HF-13

Compressor 1 Safety

The high or low pressure safety switch for compressor no. 1 has
opened for 3 seconds. The error will be cleared and compressor
no. 1 will be allowed to turn on in 15 minutes. If the safeties have
been tripped 3 times in 90 minutes, compressor no. 1 will be
locked out until the control board has been manually reset.

3

HF-14

Compressor 2 Safety

The high or low pressure safety switch for compressor no. 2 has
opened for 3 seconds. The error will be cleared and compressor
no. 2 will be allowed to turn on in 15 minutes. If the safeties have
been tripped 3 times in 90 minutes, compressor no. 2 will be
locked out until the control board has been manually reset.

4

HF-15

Thermostat Failure

The thermostat is calling for both heating and cooling at the same
time. The unit will operate on a first call basis and will automati-
cally reset.

5

HF-05

SAT Thermistor Failure

The supply-air temperature (SAT) sensor has failed. First check for
wiring errors, then replace sensor.

6

HF-06

OAT Thermistor Failure

The outside-air temperature (OAT) sensor has failed. First check
for wiring errors, then replace sensor.

7

HF-03

DIP Switch 2 is Open

Close DIP switch 2.

8

HF-12

DIP Switch 1 is Open

Close DIP switch 1.

9

SE-05

Loss of Communications
with Expansion Board

Communications between the expansion board and the control
board have been interrupted. Ensure that an expansion board
is installed and wired using the wire harness supplied with the
expansion module. If an expansion board is not used, ensure that
DIP switch position 3 is in the closed position and reset power.

10

HF-16

Control Board Failure

Generated when hardware has failed on control board. Replace
the control board.

11

HF-17

Expansion Board Failure

Generated when hardware has failed on the expansion board.
Replace the expansion board.

LEGEND

DIP

Dual In-Line Package

LED — Light-Emitting Diode

II. ERROR CODE SUMMARY

A summary of the error codes is listed in Table 13. If more
than one error code exists, they will be displayed on the LED
of the IGC board in sequence. Fault history is deleted when
power is turned off.

Table 13 — IGC Board Error Code Summary

INDICATION

ERROR MODE

ON

NORMAL OPERATION

OFF

HARDWARE FAILURE

1 FLASH

FAN ON/OFF DELAY MODIFIED

2 FLASHES

LIMIT SWITCH FAULT

3 FLASHES

FLAME SENSE FAULT

4 FLASHES

4 CONSECUTIVE LIMIT SWITCH FAULTS

5 FLASHES

IGNITION LOCKOUT FAULT

6 FLASHES

INDUCED DRAFT MOTOR FAULT

7 FLASHES

ROLLOUT SWITCH FAULT

8 FLASHES

INTERNAL CONTROL FAULT

III. INPUT AND OUTPUT CHANNEL DESIGNATIONS

Table 14 shows the input and output channel designations.

The Integrated Gas Controls for heating and cooling are shown
in Fig. 45.

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