Some notes I made when reading about Code 26 in the manuals-many points already mentioned in this thread but a couple may be new here. I can't recall a low battery having been mentioned.

--

EASi Orderpicker 26 Fault Codes Code 26 Code Title Open detected in field circuit Reason Current was not detected in the field circuit when it should be System Response 1. Alarm sounds: Yes 2. Operator's Display: CODE 26. Inform Service 3. PC contactor: De-energized 4. Speed Limit: 0.0 mph If cycling the key switch Off/On does not clear this code then follow the procedure below How to Clear Corrective Actions and Checks 1. Check the battery charge. A low battery in combination with heavy activity may cause this code to appear. 2. If the problem is intermittent, the cause may be noise spikes. Check the follow- ing Make sure that there is an insulator between the horn bracket and the tractor frame.The horn may be shorted or the varistor on the horn may be bad. Try a different horn assembly Check the snubber circuit for Q1 (REC3, C1, R2) Check the snubber circuit for Q2 (RECA, C2, R3) Run Tests. A14 - Field Current Sense Voltage. Refer to page 213 004-Forks First Enable Signal. Refer to page 273 005-Tractor First Enable Signal. Refer to page 274 O13 - PWM Ramp. Refer to page 286. Possible causes 1. Check FU8. 2. Check the cable from the field windings to the Power Card. 3. Check the resistance in the field windings. The resistance should be 1 to 2 ohms 4. Check the connection behween the Power Card and the Tractor Manager. 5. Check for voltage to frame per page 391. 6. TM1 and/or TM2 (transistor modules) may be bad.