Error E0901 Troubleshooting

Error E0901 Troubleshooting

Clear Error E0901 in Three Guided Steps

Use this checklist to inspect the system wiring and restore communication when a FINCH III displays error code E0901.

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What E0901 Means

The FINCH III is unable to detect any connected transmitters. Until at least one transmitter is detected, you will not be able to configure the system using Titan Install.

FINCH III showing the E0901 error
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FINCH III Troubleshooting

Work Through the Steps in Order

Start at Step 1 and continue until the error clears. If a step doesn't apply to your setup, move to the next one.

  1. 1

    Check the Titan Junction Box

    If installed

    Complete the checks below.

    If not installed

    Continue to Step 2.

    Inspect the Titan Junction Box

    1. With the FINCH III powered ON, open the Titan Junction Box lid.
    2. Confirm that:
      • The switch for each connected transmitter is set to ON.
      • All unused transmitter switches are set to OFF.
      • The SV LED is blinking red for each connected transmitter.
      • The black, white and red wires are secure and connected to the correct terminals.
    Titan Junction Box transmitter switches and SV bus wiring
    1. After verifying the wiring and switch positions, power cycle the FINCH III.
    Still showing E0901?

    Continue to Step 2.

    Error cleared?

    Rescan the FINCH III using Titan Install and complete the system configuration.

  2. 2

    Check the Wiring Inside the FINCH III

    Complete this step if you have a single-compartment tank without a Titan Junction Box, or if the FINCH III still shows E0901 after Step 1.

    Inspect the FINCH III Wiring

    1. Power OFF the FINCH III.
    !
    Warning

    Turn OFF power to the FINCH III before opening the metal IS lid inside the FINCH III enclosure. Opening this lid while the system is powered may cause the IS fuse to blow.

    1. Loosen the two screws at the top of the display and carefully open the FINCH III enclosure.
    2. Open the IS (intrinsically safe) metal plate by loosening the three screws.
    3. Confirm that the black, white and red SV Bus wires are secure and connected to the correct locations.
    4. Securely replace the IS metal plate and tighten the screws.
    5. Close the FINCH III enclosure.
    6. Power ON the FINCH III and check the SV LED:
      • Blinking red: The transmitters are detected. This is the expected state.
      • Solid red: The transmitters cannot be detected.
      • Not illuminated: The transmitters are not receiving power.
    7. After verifying the wiring, power cycle the FINCH III.
    Still showing E0901?

    Continue to Step 3.

    Error cleared?

    Rescan the FINCH III using Titan Install and complete the system configuration.

  3. 3

    Check the TD100 Transmitter Wiring

    If the FINCH III still shows E0901 after Step 2, inspect the wiring at each connected TD100 transmitter.

    1. Power OFF the FINCH III.
    !
    Warning

    Turn OFF power to the FINCH III before removing a transmitter from the top of the tank. Completing this step while the system is powered may cause the IS fuse to blow.

    1. Following all applicable site and working-at-height safety procedures, access each transmitter installed on the tank.
    2. At every connected transmitter, confirm that the black, white and red wires are securely connected, connected to the correct locations, and free from visible damage or loose connections.
    3. After checking every transmitter, power cycle the FINCH III.
    Still showing E0901?

    Contact Titan Support for further troubleshooting.

    Error cleared?

    Rescan the FINCH III using Titan Install and complete the system configuration.

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