The SL9600TW controllers have (7) Error codes that can be displayed by the system's Decoder Manager behind the controller panel to assist you with diagnosing or troubleshooting issues that may arise on the two-wire path throughout the life of the system.
| Fault Code | Description | Possible Causes | Actions |
| E1 | No decoder found | – Wiring error – Defective decoder – Defective decoder manager |
– Check wiring to decoder – Move decoder closer to the SL9600TW and test manually – Replace decoder |
| E2 | 2-wire over current | – Shorted wiring – Wire connected to dirt – Improper connections – Failed decoder (shorted) – Valve connected directly to 2-wire |
Troubleshoot wiring problems by undoing the last thing you did when it worked before, and/or by breaking the 2-wire system in half to isolate the problem, then in half again as needed |
| E3 | Open circuit at solenoid | The decoder detects no solenoid current when activated: – Open solenoid – Poor connections/wiring between decoder and solenoid – Broken decoder |
– Check decoder to solenoid connections – OHM solenoid – Replace solenoid – Replace decoder |
| E4 | Short circuit at solenoid | – Poor quality wiring between SL9600TW and decoder (length, connections, high resistance, 2-wire connected to dirt) – Failing decoder – Failing SL9600TW gives errors on “all” decoders, multiple decoders with same address |
– Test 2-wire quality (end-to-end resistance, resistances to earth ground) – Isolate decoder in error (test close to decoder manager) – Check for duplicate addresses |
| E5 | Decoder communication error | – Poor quality wiring between SL9600TW and decoder (length, connections, high resistance, 2-wire connected to dirt) – Failing decoder – Failing SL9600TW gives errors on “all” decoders, multiple decoders with same address |
– Test 2-wire quality (end-to-end resistance, resistances to earth ground) – Isolate decoder in error (test close to decoder manager) – Check for duplicate addresses |
| E6 | High Temperature Shut Down |
– High temperature – Excessive 2-wire duty cycle at temperature |
– Shade controller – Replace SL9600TW |
| E7 | Decoder Programming Failure |
– Multiple decoders at one time – Decoder removed before program cycle completes – Failed decoder – Failing SL9600TW |
– Retry – Replace decoder – Reple SL9600TW |