What is happening
You are called to a rover heater bank drawing from one battery bus.
The bus is drawing more current than it can carry. It needs to see 48 Ω combined, one heater element is fixed at 120 Ω, and the second is misconfigured.
Combined resistance
68.72Ω
Bus requirement
48Ω
Current splitter. Second branch at 161 Ω. Combined resistance 68.72 Ω, Bus requirement 48 Ω. Currently combined resistance is over by 20.718 Ω.
What is happening
You are called to a rover heater bank drawing from one battery bus.
The bus is drawing more current than it can carry. It needs to see 48 Ω combined, one heater element is fixed at 120 Ω, and the second is misconfigured.