AQUA AQR-S40A(W) Refrigerator: Ice Maker & Cooling Problems

The AQUA AQR-S40A(W) is a Japan-market 401 L five-door refrigerator with a light gray finish and right-opening doors. AQUA documents its compartment temperature controls, cooling checks and automatic ice-making features in a matching Japanese owner manual. If food is too warm, first confirm that power is available, the doors close completely and the storage spaces are not blocking cold-air circulation. For poor ice production, check the manufacturer instructions before handling the removable unit. Never open electrical or sealed-system components. The reviewed manual does not establish an exact-model alphanumeric fault-code list.

What this model is and how to identify it

Check the nameplate for the complete model AQR-S40A(W), including the (W) finish suffix. AQUA lists this as a 401 L model for Japan. The maker describes 600 mm-wide, five-door layout. The right-opening configuration matters: the S40A door opens to the right, while S40AL opens to the left; their official shared manual covers both.

If the refrigerator is not cooling properly

1. Verify basic power: Check the plug and household power. A working interior lamp can help indicate that the cabinet is receiving power, but it is not a full diagnosis.
2. Review the selected cooling level: Use the manufacturer controls to confirm the temperature adjustment is not left on a warmer setting. Make changes using the owner manual.
3. Look at loading and door closure: Let hot food cool before storage, do not overfill compartments and remove anything obstructing the door gasket or cold-air route.
4. Avoid temperature extremes: If refrigerator food freezes, review the control level and avoid storing high-moisture food against the cold-air outlet.

Automatic ice-maker checks

The matching manual documents ice-making operation. If ice is not being produced, check that the water tank has water, is seated properly, and the ice-making mode has not been stopped. Follow the documented cleaning method before removing or washing any ice-making parts. Never put fingers into the mechanism while it can move. If ice production does not return after the allowed external checks, request AQUA assistance.

Five-door storage and the separate ice compartment

Check the separate vegetable drawer and upper and lower freezer drawers for packages that prevent full closure. Ice production depends on proper water-tank positioning and the documented ice-maker mode. The left- and right-opening door versions share a manual, but avoid changing or forcing the door hinge direction yourself.

What the warning lights and error messages mean

AQUA documents operating-panel lights, lock/temperature settings and symptoms for this model, but the matching official manual reviewed here does not supply a confirmed table matching alphanumeric error symbols to faults. Do not apply third-party AQUA or Haier code charts without proving model and control-board applicability.

Specifications verified by AQUA

• Full model: AQR-S40A(W)
• Market: Japan
• Finish: light gray
• Capacity and dimensions: 401 L total; refrigerator 209 L; vegetable room 91 L; independent ice room 17 L; upper freezer 21 L; lower freezer 63 L. 600 × 1850 × 600 mm (W × H × D); 89 kg; 242 kWh/year.
• Main functions: Five-door refrigerator with independent automatic ice-making compartment, center vegetable room and quick-freeze function.

When to stop troubleshooting and ask for service

If the appliance stays warm after checking household power, settings and unobstructed door closure, or the control panel still does not respond after the manufacturer-documented basic procedure, contact AQUA or the retailer. Stop operating the unit immediately if there is a burnt smell, damaged cord, electrical heat or unexplained water near electrical connections. Leave compressor, refrigerant and internal electrical diagnosis to a qualified technician.

Official manual and support

Source checked 2026-10-19. The manufacturer documents the exact series and finish on its product page; use the complete model number on your identification label. AQUA product and specifications; AQUA Japanese owner manual (PDF); Manufacturer support / document directory.

Research status: model and owner manual identified; exact-model electronic error codes not manufacturer-confirmed in the documents reviewed. Google AI Overview unavailable / not inspected. Before public publication, check the current manual revision and WordPress import preview.