Troubleshooting

Below is a list of solutions for the most common cooling unit issues—including those that can occur during shipping. In the FAQ’s below, you’ll find help on everything from spotting leaks to adjusting fins and troubleshooting power problems.

Still having trouble? Call us at 260-336-6115

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  • How should the cooling fins be positioned to ensure proper function?

    For Dometic cooling units:

    • The fins should be completely level, both side-to-side and front-to-back.

    For Norcold cooling units:

    • Single-tab models: Fins should be 3 degrees higher on the left side than the right, while remaining level front-to-back.
    • Two-tab models: Fins should be completely level in all directions.

  • How can I ensure my RV refrigerator cools properly?

    Adequate Ventilation: Ensure there is proper airflow around the refrigerator, with zero clearance on the sides, bottom, and top.

    Level Positioning: Verify that the refrigerator is level, as uneven placement can affect cooling efficiency.

    Heat Source: The refrigerator must have the correct heat.

  • What should I do if my refrigerator isn't cooling between 35°F and 41°F after 8 hours?

    Potential Cooling Unit Issue: If the refrigerator isn’t cooling within this temperature range after 8 hours, there may be a defect in the cooling unit.​

  • How can I identify a leaking cooling unit?

    Ammonia Odor: Detect any ammonia smell in or around the refrigerator.

    Residue: Look for yellowish or greenish powder around the insulation pack in the exterior access panel.

    Unusual Noises: Listen for a gurgling sound after the unit has been running for more than 15 minutes.

    Heat Discrepancy: Check if the rear of the refrigerator is hot while the interior remains warm.

  • Why is my cooling unit not heating up on the back side?

    This could be due to a faulty thermostat or lack of 12-volt power to the controls.

    Solution: Check if the unit is receiving 12-volt power and inspect for corroded control connections.

  • My cooling unit is heating up, but it’s not cooling. What could be the problem?

    Possible causes include shipping damage or the refrigerator not being level.

    Solution:

    • Inspect for bent or kinked pipes that may have occurred during shipping.
    • Ensure the refrigerator is level to allow proper cooling.

  • I have 12-volt power going to my controls, but my cooling unit won’t turn on. What should I do?

    This could indicate defective controls or a faulty cooling unit.

    Solution:

    • Bypass the controls by wiring the heating element directly to a 110-volt power source.
    • If the unit heats up but still does not cool, the cooling unit may be defective.

  • How can I tell if my cooling unit is faulty or if the issue is with the controls?

    A quick test is to directly wire the heating element to a 110-volt power source.

    If the unit heats up but does not cool, the cooling unit may be defective.

    A percolating sound from the unit indicates low pressure.

  • Could my cooling unit have been damaged during shipping?

    Yes, shipping can sometimes cause pipes to become misaligned, which affects cooling performance.

    Solution: Check for visible damage and follow the guidelines for adjusting cooling fins.