Repairing a Leak Around an RV Light

• 1). Check all exterior lights for leakage and damage. The most common place to find leaks is on the exterior travel or marker lights. These lights are frequently damaged from road debris and parking mishaps.
  
  
• 2). Replace all cracked and broken lenses. Inspect the interior of the light assembly. If any corrosion exists, replace the entire assembly.
  
  
• 3). Check for leakage around all exterior lights by looking for discoloration around the light assembly. Remove the light assembly and check for damage to the RV body behind the light.
  
  
• 4). Repair any damage to the RV body by cutting away all rotted wood or damaged fiberglass. Cover the wood with the fiberglass cloth. Soak the cloth in the hardening liquid prior to applying to the RV body. Allow to fully cure, about 10 minutes.
  
  
• 5). Replace the light assembly. Run a thick bead of silicone sealant around the entire back of the light assembly prior to replacing. Replace the screws to complete the repair.
  
  
• 6). Visually check the repair to make sure the seal is watertight. If the seal is not perfect, run a bead of silicone sealant around the outside edge of the light assembly.
  
  
• 7). Check the RV ceiling fan if it has a fan/light combination. To stop a leak, remove any old sealant from the edge of the unit. Remove all debris from around the assembly. Replace the sealant with a bead of silicone or use gray putty instead of silicone.