DSC HS2128 Reference Manual page 205

Trouble [1] Service Required
[03] Aux Supply
An auxiliary power supply trouble is present.
[04] Time and Date
The alarm controller internal clock is not set .
[05] Output 1 Fault
HSM2204 output#1 open circuit.
Trouble [2] Module Battery Trouble
Trouble
[01] Panel Low Battery
The panel detects that the battery is below the low
battery threshold (less than 11.5VDC).
NOTE: This trouble condition will not clear until the
battery voltage is 12.5VDC min., under load. NOTE: If
battery is new allow 1 hour to charge.
[02] Panel No Battery
The panel detects that no battery is present or that the
battery is shorted.
[04] 4 High Current output 1-4 Low Battery (HSM2204)
HSM2204 battery less than 11.5VDC.
NOTE: This trouble condition will not clear until the
battery voltage is 12.5VDC min., under load. Charge
battery. It may be low due to a long period without AC.
[05] 4 High Current output 1-4 No Battery (HSM2204)
Enter 05 to view which HSM2204 does not have a
battery connected.
[07] Power Supply 1-4 Low Battery (HSM2300)
Enter 07 to view which HSM2300 has a battery voltage
less than 11.5V.
[08] Power Supply 1-4 No Battery (HSM2300)
Enter 08 to view which HSM2300 does not have a
battery connected.
Section 8: Troubleshooting
Press [01] to determine specific trouble
Check for a short between Aux+ and Aux- or other system ground.
Ensure the aux current draw has not exceeded the documented limits.
To program the time and date:
Enter [*][6][Master Code] then press [01].
Enter the time and date (24-hour clock) using the following format: HH:MM
MM/DD/YY
e.g.,. For 6:00 pm, June 29, 2010:
Enter: [18] [00] [06] [29] [10]
If output #1 is unused: ensure terminals O1, AUX are jumpered with 1K resistor
(brown, black, red).
If output #1 is used: disconnect wire leads from O1, AUX terminals, measure
resistance of leads:
Open circuit indicates a break in wiring.
Press [02] to determine specific trouble
Troubleshooting
Verify voltage measured across AC terminals is 16-18 VAC. Replace transformer if
required.
Disconnect battery wire leads:
Verify battery charging voltage measured across battery leads = 13.70 - 13.80 VDC.
Connect battery, remove AC power.
Verify measured voltage across Aux terminals is 12.5VDC min.
Verify battery is connected.
Refer to troubleshooting steps for panel low battery.
Replace battery if it is no longer able to hold a charge due to age.
Verify battery is connected.
Refer to troubleshooting steps for panel low battery.
Charge battery. It may be low due to a long period without AC.
Replace battery if it is no longer able to hold a charge due to age.
Verify battery is connected.
Refer to troubleshooting steps for panel low battery.
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