Looking for manuals? Help with error codes? Troubleshooting guides? Video help? Our troubleshooting section can help.
Troubleshooting Guides and Tools:
Having trouble with error codes?
Graco Reactors were the first line of proportioners to offer comprehensive diagnostic codes to aid quick troubleshooting in the field. The technical team at CPi has taken it a step further by linking the codes with the proper pages in the manuals and adding our own information. Now you can click through to the solution. Help is still available by phone at all times: (330) 861-5200.
Temperature Control Diagnostic Codes
Code # |
Code Name |
Alarm Zone |
| 01 |
High fluid temperature |
Individual |
| 02 |
High hose current |
Hose only |
| 03 |
No hose current with hose heater on |
Hose only |
| 04 |
FTS not connected |
Individual |
| 05 |
Board overtemperature |
All |
| 30 |
Momentary loss of communication |
A |
| 99 |
Loss of communication |
A |
Motor Control Diagnostic Codes
Code # |
Code Name |
Alarm Zone |
| 21 |
No transducer (component A) |
A |
| 22 |
No transducer (component B) |
A |
| 23 |
High fluid pressure |
A |
| 24 |
Pressure Imbalance |
A/W |
| 27 |
High motor temperature |
A |
| 30 |
Momentary loss of communication |
A |
| 31 |
Pumpline reversing switch failure/high cycle rate |
A |
| 99 |
Loss of communication |
A |
Temperature Control Diagnostic Codes
Code # |
Code Name |
Alarm Zone |
| 01 |
High fluid temperature |
Individual |
| 02 |
High zone current |
Hose only |
| 03 |
No zone current with hose heater on |
Hose only |
| 04 |
FTS not connected |
Individual |
| 05 |
Board overtemperature |
All |
| 06 |
Communication cable unplugged from module |
A |
| 99 |
Loss of communication |
A |
Motor Control Diagnostic Codes
Code # |
Code Name |
Alarm Zone |
| 21 |
No transducer (component A) |
A |
| 22 |
No transducer (component B) |
A |
| 23 |
High fluid pressure |
A |
| 24 |
Pressure Imbalance |
A/W |
| 25 |
High line voltage |
A |
| 26 |
Low line voltage |
A |
| 27 |
High motor temperature |
A |
| 28 |
High current |
A |
| 29 |
Brush wear |
A |
| 99 |
Communication Error 2 |
A |