Page 49
APPENDIX
SYMPTOM
CAUSE and REMEDY
Display is
blank
−
Verify that the DIP-1 is connected to power
source.
−
Verify that the 10 pin flat cable between the
main board and the faceplate board is
connected.
“
ER1
” is
displayed
−
Unit 1 is disconnected. Verify that the cable
between the DIP-1/115 and the unit 1 is
connected.
“
ER2
” is
displayed
−
Unit 2 is disconnected. Verify that the cable
between the DIP-1/115 and the unit 2 is
connected.
“
ER3
” is
displayed
−
There is a faulty connection between the
DIP-1/115 and the actuator. If the actuator
runs in reverse, switch terminals 1 and 2 on
the DIP-1/115.
−
If the DIP-1/115 displays the opposite value
(wide opened air inlet), change polarity on
the actuator. Refer to wiring diagram
(page
12 note 2)
.
−
When this error is detected, you will see
the potentiometer value at position 12. The
value 250 means that the actuator is at its
maximum value while 0 means the
minimum value.
−
If the value is always between 250-255 and
the actuator is moving, the DIP-1/115 reads
an open circuit, check the wiring and the
jumpers
(page 13, fig.3).
The value is
supposed to increase when the inlet is
opening and decrease when the inlet is
closing.
−
There is a wrong connection between the
DIP-1/115 and the actuator. If the air inlet is
open, when it is suppose to be close,
inverse the wires from the DIP-1/115’s
terminal block 1 and 2.
“
ER5
” is
displayed
−
The actuator’s travel is too short. Increase
the travel.
TROUBLESHOOTING
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