Alarm Board Troubleshooting
Check power supply to the Alarm Board and
its Fuse F1. Disconnect power. Label, discon-
nect and cap wires on terminals COMP, A9,
T 9 A, 3 3, 3 1, 35, 34, 3 6, 3 2. Install a fused
jumper from X1 to 34 and with open switches
to COMP, A9, T9A.
Turn Control panel ON. Note: Alarm Board
will come up in Alarm Condition.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 • Printed in USA
Revised August 1, 1996 P/N 340272A
4 - 5
Inspect or
Place Probes Result Action
1 Alarm Light Lit Go to 3
Not Lit Go to 2
2 Probe across Alarm 120V Repair Alarm Light Circuit, Go to 3
Light Terminals 0V Alarm Board Failure
3 31 X2 120V Go to 4
0V Alarm Board Failure
4 36 X2 120V Go to 5
0V Alarm Board Failure
5 32 X2 120V Close Jumper Circuit from X1 to COMP. Go to 6
0V Alarm Board Failure
6 Alarm Light Not Lit Close Jumper Circuit from X1 to A9. Go to 7
Lit Alarm Board Failure
7 A9 Light Lit Go to 8
Not Lit Alarm Board Failure
8 3 Min Delay Lit Open Jumper Circuit from X1 to A9. Go to 9
Alarm Light Not Lit Alarm Board Failure
9 Alarm Light Lit Go to 10
Not Lit Alarm Board Failure
10 32 X2 120V Press Bell Stop Switch. Go to 11
0V Alarm Board Failure
11 32 X2 0V Press Reset. Go to 12
120V Check Bell Stop circuit. If O. K. - Alarm Board Failure
12 35 X2 120V Go to 13
0V Alarm Board Failure
13 Alarm Light Not Lit Close Jumper Circuit from X1 to T9A. Go to 14
Lit Alarm Board Failure
14 T9A Light Lit Go to 15
Not Lit Alarm Board Failure
15 30 Min Delay Lit Open Jumper Circuit from X1 to T9A. Press Reset. Go to 1 6
Alarm Light Not Lit Alarm Board Failure
16 Alarm Light Not Lit Test Completed, Power OFF, Re-instate Control.
Lit Alarm Board Failure
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