E15
Thermador Internal Condensate / Leak Detection Fault

E15 error; unit may shut down cooling and alarm may sound, often associated with internal leak detection.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Blocked condensate drain causing overflow, Water in base pan triggering float switch (if equipped), Cracked drain pan, Excessive condensation due to door gasket leak

How to Fix / Troubleshooting

Safety: Unplug the appliance before tipping or accessing the base. Water and electricity are a dangerous combination.

Steps:

  • Inspect interior: Look for standing water at the bottom of the cabinet. Mop up any visible water.
  • Check drain: Locate the condensate drain hole at the rear of the interior. Use a small flexible brush or pipe cleaner to clear any blockage. Flush with a small amount of warm water.
  • Access base pan: Carefully pull the unit out and remove the rear lower panel. Check the drain pan above the compressor for cracks or overflow.
  • Float switch (if present): Some models have a float or leak sensor in the base. If water is present, dry the area completely and reset the float. Replace the sensor if corroded or stuck.
  • Door gasket: Inspect the door gasket for gaps or tears that could cause excessive condensation. Replace if damaged.

After clearing water and blockages: Reassemble, restore power, and verify that E15 clears and does not return.

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Repair Difficulty

Medium 3/5

Required Part

Condensate Drain Tube / Drain Pan
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