Error Code nE

Vario Error

Also displayed as: nE

What This Means

Wiring connection to vario motor disconnected; Vario switch not assembled properly; Vario motor faulty

How to Fix

1. 1

   1. Check wiring connection to vario motor for disconnection. Reconnect if needed.

2. 2

   2. Inspect vario switch (micro switch) assembly. If not properly assembled, reassemble the vario switch.

3. 3

   3. Measure vario motor resistance: expected 4 kΩ ±5%.

4. 4

   4. Check vario motor operation range (12-15 Ohms for cam position sensing micro switch).

5. 5

   5. Check voltage at connector RL3 pin4 ~ NA4 pin2: expected 120V AC ±15%. If voltage is present but vario motor fails, replace vario motor.

6. 6

   6. If voltage is out of range, replace main PCB assembly.

7. 7

   NOTE: In Test Mode step 7, 'nE' will display when vario valve fails.