Motor Control Diagnostic Codes
309574C 11
Motor Control Diagnostic Codes
Motor control diagnostic codes E21 through E29 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.
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 .
Alarms can also be cleared, except for code 23,
by pressing .
Code
No.
Code Name Alarm (A) or
Warning (W)
Corrective
Action page
21 No transducer (component A) A 12
22 No transducer (component B) A 12
23 High pressure A 12
24 Pressure imbalance A/W (to select,
see page 28)
12
25 High line voltage A 13
26 Low line voltage A 13
27 High motor temperature A 13
28 High current A 13
29 Brush wear W 13