Trouble | Probable Cause | Remedy |
ALL CONTROL PANEL | E. Flat cable connected between | E. Check cable for pinched or |
SWITCHES NOT OPERATING. | control switch module and | broken wire condition and repair |
(cont’d) | master circuit board pinched | or replace as necessary. |
| and shorted out or broken wire |
|
| in cable. |
|
F.Master circuit board not operating properly.
F.Replace master circuit board.
CONTROL PANEL SWITCHES | A. | Not pressing and holding | A. Press and hold ‘‘SECURITY |
CANNOT BE DEACTIVATED. |
| ‘‘SECURITY SWITCH’’ for 3 | SWITCH’’ for 3 seconds to |
|
| seconds to deactivate control | deactivate control switches. |
|
| switches. |
|
| B. | ‘‘SECURITY SWITCH’’ | B. Replace control panel switch |
|
| inoperable. | module. |
|
|
|
|
PARTIAL MESSAGE OR DULL | A. | Extremely low voltage. | A. Upgrade voltage. |
(POORLY ILLUMINATED) |
|
|
|
DISPLAY. |
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|
|
|
|
ONE OR MORE FAULT | A. Flat cable not properly |
MESSAGES NOT | connected to fault message |
OPERATING. | module or master circuit |
| board. |
| B. Flat cable connected between |
| fault message module and |
| master circuit board pinched |
| and shorted out or broken wire |
| in cable. |
A.Properly connect flat cable to fault message module or master circuit board.
B.Check cable for pinched or broken wire condition and repair or replace as necessary.
C.External sensing device failing to signal master circuit board which in turn signals fault message display.
C.Replace or repair external sensing device.
D. External sensing devices cable D. | Make sure external sensing |
connectors not securely | devices cable connectors are |
connected to master circuit | securely connected to master |
board connectors. | circuit board connectors. |
E.Disconnected or broken wire between master circuit board connector and external sensing device.
E.Connect or repair wire between master circuit board connector and external sensing device.
F. | Master circuit board not | F. | Replace master circuit board. |
| operating properly. |
|
|
G. | Fault message display | G. | Replace fault message display |
| module not operating properly. |
| module. |
|
|
|
|
ALL FAULT MESSAGES NOT A. | No electrical power to Unit. | A. | Connect electrical power to Unit. |
OPERATING. |
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|
|
B.Flat cable not properly connected to fault message module or master circuit board.
B.Properly connect flat cable to fault message module or master circuit board.
C.Flat cable connected between fault message module and master circuit board pinched and shorted out or broken wire in cable.
C.Check cable for pinched or broken wire condition and repair or replace as necessary.
312028000 | 64 |
