Dashed Lines on a FINCH 5332E

Follow this 3 step process to isolate the fault to one of three components: the display, the tank cable/wiring, or the transmitter.

Step 1: Inspect the SVBus Status LED

1. Open the FINCH 5332E display lid.
2. Locate the main circuit board inside the door. The board contains a large white connector.
3. Turn system power ON.
4. Observe the SVBus Status LED located near the large white connector.

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Normal Operation

• The LED pulses on and off in a steady heartbeat pattern.

Abnormal Operation

• Irregular blinking
• Partial illumination
• Solid ON condition

Any of these conditions indicate a probable communication fault.

Step 2: Isolate the Display

1. Turn system power OFF.
2. Disconnect the transmitter from the display by unplugging the transmitter connection:
   • FINCH 5332E (Green Board): Connector marked P2 
   • FINCH 5332E (Red Board): Connector marked Transmitter
3. Turn system power ON again.

If the SVBus LED remains ON: The FINCH 5332E display is faulty and requires you to upgrade to our latest FINCH display version.

If the SVBus LED turns OFF: Continue to Step 3.

Step 3. Verify the Cable and Transmitter

1. Remove the TD80 transmitter from the top of the tank.
2. Using a known-good cable or wiring, reconnect the TD80 directly to the display.

Results

• If communication is restored, the original cable or field wiring is faulty.
• If the display continues to show four dashes (----), the TD80 transmitter is defective and needs to be upgraded to our latest TD100 transmitter. 

Summary