FORM NO. 56041516 - ConvertaMAX
™
28/34, I-MAX
™
28HD/34HD, BA 750/850 - 57
Error
Code
Description
Possible Cause
Corrective Action
21
Not used
22
Not used
23
Not used
Motor obstruction
Remove obstruction.
24
Vacuum motor overload
Motor failure / carbon brush worn
Consult service manual.
25
Vacuum motor severe overload
See error code 24
Bad electrical connection
Check all conections to vacuum motor(s).
Defective vacuum motor(s)
Consult service manual.
26
Vacuum motor circuit open
Control failure
Consult service manual.
27
Vacuum contactor contacts shorted
Contactor failure
Consult service manual.
28
Not used
Contactor failure
Consult service manual.
29
Vacuum contactor coil overload
Coil suppression diode failure
Consult service manual.
30
Vacuum contactor coil severe overload
See error code 29
Bad electrical connection
Check all connections to vacuum motor contactor.
Contactor failure
Consult service manual.
31
Vacuum contactor coil circuit open / output fault
Control failure
Consult service manual.
Solenoid failure
Consult service manual.
32
Solution solenoid overload
Control failure
Consult service manual.
33
Solution solenoid severe overload
See error code 32
Bad electrical connection
Check all conections to solution solenoid.
Defective solution solenoid
Consult service manual.
34
Solution solenoid circuit open / output fault
Control failure
Consult service manual.
35
External wiring fault
Wiring problem
Check for loose connections to main control unit. Consult service manual.
36
No accessory output voltage
Control Failure / Wiring problem
Check for loose connections to main control unit. Consult service manual.
Relay failure
Consult service manual.
37
Scrub brush remove relay coil overload
Coil suppression diode failure
Consult service manual.
38
Scrub brush remove relay coil severe overload
See error code 37
Bad electrical connection
Check all connections to remove relay.
Relay failure
Consult service manual.
39
Scrub brush remove relay coil circuit open / output fault
Control failure
Consult service manual.
Reverse switch out of adjustment
Consult service manual.
40
Reverse switch input fault
Reverse switch failure
Consult service manual.