Portable unit shows hose connected but hot air leaks into the room around the window kit.

Safety first: Turn off the unit before adjusting the exhaust system.

• Step 1 – Reinstall window kit: Follow the Sencor manual to ensure the window panel fits tightly in the window frame with no gaps.
• Step 2 – Seal gaps: Use foam strips or weatherstripping around the panel edges to prevent hot air infiltration.
• Step 3 – Inspect hose: Check the exhaust hose for cracks or holes and replace if damaged.
• Step 4 – Secure connections: Ensure the hose is firmly locked into both the unit and the window adapter.