05 DIY GUIDE / DUBAI
Seal and zone the cooled air
Before increasing cooling capacity, check leaky door seals, window gaps, room controls, filters and blocked return-air paths.
START STEP 01↓
01 WHY THIS MATTERS IN DUBAI
Start with
the real condition.
Cooling is a major household load in summer; DEWA recommends 24°C on auto mode, regular filter cleaning and well-sealed doors and windows.
More even comfort, fewer obvious air leaks and a clearer brief for an HVAC technician when a room still performs poorly.
02 WHAT GOOD LOOKS LIKE
Three details
to notice.



03 STEP-BY-STEP
Do one thing.
Check it. Continue.
Each completion check tells you when to move forward. If the check fails, adjust that step before adding another decision.
- 01
Record the uncomfortable rooms
At the same time on two hot days, note the room temperature, thermostat setting, direct sun and whether the door was recently opened.
- 02
Inspect simple seals
Look for visibly worn removable seals around permitted doors and windows. Do not dismantle frames or glazing systems.
- 03
Clean only accessible filters
Follow the manufacturer’s instructions for filters intended for occupant cleaning. Switch equipment off as instructed and never open service panels.
- 04
Clear the return-air path
Move furniture, curtains and stored items away from return grilles. A room needs a path for air to return, not only a supply outlet.
- 05
Use a steady set point
DEWA recommends setting air conditioning to 24°C in auto mode. Avoid repeatedly forcing very low settings to compensate for another fault.
- 06
Escalate warning signs
Call a qualified HVAC professional for recurring condensation, musty odour, unusual noise, weak airflow or rooms that remain uneven after simple checks.
04 SAFETY BOUNDARY
Stop before
specialist work.
Do not open HVAC service panels, alter ducts, add refrigerant, change electrical controls or modify shared building systems yourself.
ASK BOLT BYTE ABOUT THIS GUIDE↗