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CHECK or TRBL 974trouble

Honeywell VISTA-128FBP: CHECK or TRBL 974

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

What This Code Means

Trouble detected on Dialer 1.

Common Causes

  • 1Phone line 1 cut
  • 2Low voltage on phone line 1
  • 3Dialer hardware fault

Resolution Steps

Verify the connection and voltage of the primary telephone line. Contact service if line is functional.

Manual References(1)

Field Notes

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Related Codes

CHECK or TRBL 990The 1st RF Receiver is not receiving signals.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).LSENS accompanied by zone numberA smoke detector has a low sensitivity level and might not detect smoke.

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