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TROUBLESHOOTING GUIDE (Cont.)
General Problem
Analog Inputs or
Outputs Not Working
Properly
No Connection Fault
(nc) - Temperature/
Humidity Card Only
Temperature / Humid-
ity Probe Not Reading
Properly
Procedure
1. Improper DIP switch and/
or jumper settings on
Control Card.
2. Defective analog input
source (remote mode).
3. Defective Control Card
1. Loose or defective cable
from control panel to
Temperature/Humidity
Probe
2. Loose internal wiring from
Temperature/Humidity
inputs (TH3-TH7) to
breakout board
1. Improper rotary DIP switch
setting on Temperature/
Humidity Card.
2. Defective temperature/
Humidity probe
Solution
1. Correct settings (see Tables 4 and 6).
2. Repair or replace input source.
3. Replace Control Card.
1. Repair or replace cable.
2. Repair wiring.
1. Verify the rotary DIP switch setting (see
Figure 11) is the same as the slot number
of the Temperature/Humidity Card as
indicated by the label inside the cabinet
door.
2. Replace Temperatue/Humidity Probe.
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