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Honeywell VISTA-128FBP: AC LOSS

Honeywell VISTA-128FBP·1 view·0 field notes

What This Code Means

The system has lost primary AC power and the keypad is operating on battery power only.

Common Causes

  • 1Premises power failure
  • 2Tripped circuit breakers
  • 3Blown fuses
  • 4AC power supply cut off

Resolution Steps

If only some lights are out on the premises, check circuit breakers and fuses and reset or replace as necessary. CALL FOR SERVICE IMMEDIATELY if AC power cannot be restored.

Manual References(1)

Field Notes

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Related Codes

CHECK or TRBL 974Trouble detected on Dialer 1.CHECKIndicates a trouble condition in the system, which may be associated with specific zones, supervised relays, peripheral devices, or system components like dialers and ground faults.HSENS accompanied by zone numberA smoke detector has a high sensitivity level, which may cause false alarms.CHECK or TRBL 970Trouble detected on Bell 1 Output (Notification Appliance Circuit).CHECK or TRBL 973Trouble detected on the J2 Trigger Output.

Related Questions

How are the VISTA-128FBP bell output circuits wired and what supervision method does the system use to detect an open or short?How does the VISTA-128FBP supervise its backup battery and what does a battery trouble condition indicate?What does a ground fault trouble indicate on the VISTA-128FBP and how do I locate it?
All VISTA-128FBP trouble codesVISTA-128FBP panel page