E32: Motor Control Overtemperature; Communication Diagnostic Codes; E30: Momentary Loss Of Communication; E99: Loss Of Communication - Graco Reactor E-20 Series Manual

E32: Motor Control
Overtemperature
The E32 error code indicates a high temperature condi-
tion within the motor control board (701). This could be
caused by an abnormally high ambient temperature in
the work location, blockage of cooling vents in the cabi-
net, or the failure of the cooling fan inside the cabinet.

Communication Diagnostic Codes

E30: Momentary loss of
communication
Communications between the display and the motor
control board or the temperature control board have
been momentarily lost. Normally, when communication
is lost, the corresponding display will show E99. The
corresponding control board will register E30 (The red
LED will flash 30 times). If communications are recon-
nected, the display can show the E30 for a short time
(no more than about two seconds). It should not be pos-
sible for E30 to be shown continuously, unless there is a
loose connection causing the display and the board to
continuously lose and regain communication.
Check all wiring between the display and the corre-
sponding control board.
312066ZAD
1. Relieve pressure, page 26. Verify low pressure with
analog gauges.
2. Turn main power OFF
If error still remains, identify cause of the overtempera-
ture condition and remedy.

E99: Loss of communication

Communications between the display and the motor
control board or the temperature control board has been
lost. When communication is lost, the corresponding
display will show E99.
1. Check all wiring between the display and the corre-
sponding control board. Pay close attention to the
wire crimping on plug J13 for each board.
Step 2 measures line voltage and should be done by a
qualified electrician. If work is not performed properly
it may cause electric shock or other serious injury.
2. Measure the incoming voltage to the board (it
should be ~ 230Vac).
3. If it was only receiving 1 leg of the 230Vac the board
may light up, and still not function properly. Correct
the incoming voltage problem.
Communication Diagnostic Codes
then ON .
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