Motor Control Diagnostic Codes
313540L
13
Motor Control Diagnostic Codes
Motor control diagnostic codes E21 through E27 appear
on pressure display.
There are two types of motor control codes: alarms and
warnings. Alarms take priority over warnings.
Alarms
Alarms turn off Reactor. Turn main power OFF
then ON
to clear.
NOTE: Alarms can also be cleared, except for code
23, by pressing
.
Warnings
Reactor will continue to run. Press
to clear. A
warning will not recur for a predetermined amount of
time (varies for different warnings), or until main power
is turned OFF
then ON
.
E21: No component A
transducer
1. Check transducer A connection at J3 on motor con-
trol board, page 34, and clean contacts.
2. Reverse A and B transducer connections. If error
moves to transducer B (E22), replace transducer A,
page 13. If error does not move, replace motor con-
trol board, page 33.
E22: No component B
transducer
1. Check transducer B connection at J8 on motor con-
trol board, page 34, and clean contacts.
2. Reverse A and B transducer connections. If error
moves to transducer A (E21), replace transducer B,
page 13. If error does not move, replace motor con-
trol board, page 33.
E23: High fluid pressure
1. Relieve pressure. Verify low pressure with analog
gauges. Turn main power OFF
then ON
. If error persists, do checks below.
2. If pressure imbalance is set to Warning instead of
Alarm (see page 33), an E23 will occur. See
for causes and checks.
3. Ensure at least one pump is in the number 1 posi-
tion. See Setup section of Reactor H-VR Operation
manual 313539.
4. If error still persists, reduce hydraulic pressure.
Code
Code Name
Alarm (A) or
Warning (W)
Corrective
Action
page
21
No transducer (compo-
nent A)
A
22
No transducer (compo-
nent B)
A
23
High fluid pressure
A
24
Pressure imbalance
A/W (to
select, see
page 33)
27
High motor temperature
A
30
Momentary loss of com-
munication
A
31
Pumpline reversing switch
failure/high cycle rate
A
99
Loss of communication
A
Code
Code Name
Alarm (A) or
Warning (W)
Corrective
Action
page
Summary of Contents for Reactor H-VR
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