Three phase Level 2 controllers include a loss of single phase sensor. If a single phase is lost and the system loads are highly inductive, the line voltage may stay within acceptable limits.
The controller indicates a fault when the relative phase angle between any line-to-line phase angle drops to less than 90 degrees. This feature can be disabled using the PC service tool or the digital display Setup sub-menus.
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
20
Part #
Description
Qty
System
6-20
Block and Cross-Bar Assembly Removal and Replacement (150 to 260 Amperes)
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.