Data Aire DAP III, Operation Manual

Page: 81 / 94

81
DATA ALARM PROCESSOR III (DAP III)
TROUBLESHOOTING GUIDE
1. The power must be off before servicing the DAP-III
2. Factory notifi cation is required prior to replacing any components in the panel
3. Meters or any type of test instruments are NOT to be used on the panel without specifi c instructions from the factory
Problem Possible Cause Check or Remedy
No power or panel does not
come on Main disconnect switch is OFF
Hard power ON/OFF switch of OFF
Optional remote shutdown contact is
open
Loose connection on P5 plug or
cable
F1 PCB fuse of DAP-III is blown
Transformer circuit breaker is tripped
Turn disconnect switch to ON
Turn hard power ON/OFF switch to ON
Check remote shutdown contact
Check P5 connections on DAP-III Control
Module
Replace with 2 amp fuse
Reset the circuit breaker on transformer
Operates but no display Loose connection with control module Turn panel OFF. Check CAT 5 cable that
plugs into PC board and turn back ON
Display is too dim or too
bright Improper LCD adjustment Adjust the LCD pot, RP2, on PC board that is
located next to the LCD
Self Test Failures
RAM SIGNATURE
ANALOG
12VDC REGULATED
5 VDC REGULATED
BATTERY VOLTAGE
RETURN TEMP SENSOR
DISCHARGE TEMP SEN-
SOR
HUMIDITY SENSOR
BUTTONS
Empty historical memory
24 VAC power is low
24 VAC power is low
24 VAC power is low
Battery low or disconnected
Loose connections on P8 or sensor
problem
Loose connections on P8 or sensor
problem
Loose connections on P8 or sensor
problem
Faulty button(s) or cover is pressing
on button(s)
Press Select

. If failure is at start-up.
Check back-up battery. Remove paper be-
tween battery and contact
Check 24 VAC power and reset panel
Check 24 VAC power and reset panel
Check 24 VAC power and reset panel
Check battery, replace if lower than 2.8 V
Check connection. See temp. sensor problem
Check connection. See temp. sensor problem
Check connections. See humidity sensor
problem
Insure that the cover is not pressing on the
button(s)