Kidde VM-1 - Page 170

Chapter 7: Service and troubleshooting
162 P/N 3101890-EN • REV 006 • ISS 21JUN18
Device
Trouble tab message Possible cause Possible solution
Photo quiescent too high
The detector is dirty Clean the detector
Photo quiescent too low
The detector is dirty Clean the detector
Photo value too high
The base is bad Replace the base
CO communication trouble UART
There is no communication
between the V-Series detector and
CO sensor.
Open the V-
Series detector and make
sure the CO module is properly
seated.
CO sensor failure
The V-Series detector CO module
failed supervision.
From the control panel, reset the
panel. If the trouble recurs after 44
seconds replace the detector.
CO end of life
The V-Series detector CO module
has reached its end of life.
Replace the CO module.
CO checksum failure
The V-Series detector CO module
is not calibrated.
Replace the CO module.
Static val
ue for vector measurement
too big
Devices on the loop are drawing
too much current during the
mapping process.
Place a temporary short across the
data loop (approximately
5 seconds).
Static value for vector measurement
too small
Devices on the loop are not
drawing enough current during
mapping.
• Replace the detector base.
• Check for defective wiring.
Short circuit on relay base
There is a short between the
detector and detector base. (Note:
The detector will report that it has a
standard base, regardless of the
real base type.)
Remove the short.
Device has switched to a short
circuit while closing the isolator relay
There is a short on the loop. (Note:
This only applies to detectors with
an isolator base.)
Remove the short on the loop.
External or iso
lator relay does not
switch
The base cannot change its state. Isolator base:
• Remove the detector from the
base for 60 seconds, and then
put it back on the base. If the
trouble returns or there is no
power to the next base, replace
the faulty base.
Relay base:
• Remove the detector from the
base for 60 seconds, and then
put it back on the base. If the
trouble returns, replace the faulty
base.
• Smoke the detector while it is on
the base. If after the alarm the
trouble returns, replace the base.
Error wit
h EEPROM ID, EEPROM
not initialized
• The flash memory is corrupted.
• The EEPROM is empty (the
devices are not identified).
Replace the detector.