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MODEL OVERVIEW
About this model: Midea MRB19B7AWW
The white MRB19B7AWW combines a reversible-door bottom-freezer layout with five documented LED fault pairs.
Start with the white model and its layout
MRB19B7AWW is Midea Canada's white, 18.7-cubic-foot bottom-mount refrigerator. Its 29.5-inch width and lower freezer distinguish it from a top-mount cabinet, while the 13.07-cubic-foot fresh section and 5.62-cubic-foot freezer define the storage split. The product highlights a reversible door, automatic defrost, electronic controls, a gallon-size door bin and two humidity-controlled produce drawers. This matters when comparing a kitchen's door swing and when deciding which compartment has actually warmed. The owner PDF names this white model and stainless MRB19B7AST on the same cover; the white product page's own documentation API links that exact PDF. Its drawings may vary by model, so use the full rating label and the installed control panel rather than judging by a picture. Ice-maker ready means an optional unit may be fitted; do not assume one is present.
Learn what a healthy panel normally shows
The six numbered lamps serve both settings and fault reporting. Immediately after connection, the entire display appears for three seconds; the medium default then leaves LED2 and LED5 illuminated. The fresh-food scale uses positions 6, 5 and 4, and the freezer scale positions 3, 2 and 1. A press advances the temperature selection, with the new value taking effect after about 25 seconds. Thus two steady lights after startup can simply show selected temperatures. The manual says fault lamps flash in sequence. Before interpreting a pattern, watch long enough to tell flashing from a fixed setting and photograph all six positions. A three-second control hold also enters standby and stops the compressor; a short press resumes. A quiet white cabinet may be in standby rather than suffering a cooling-system failure.
Set it upright and preserve airflow
A bottom-freezer cabinet is awkward to carry, but the installation limits still apply: Midea says not to tilt it beyond 45 degrees while moving. If it was horizontal for any length of time, stand it upright for 24 hours before plugging in. For normal upright handling, the preparation page gives approximately two hours. Remove shipping foam between condenser and cabinet and use a grounded three-prong receptacle without an extension. After connection, the guide suggests checking operation at roughly 30 minutes; after a longer disconnection, allow four hours of cooling before adding food. The glass shelves should not be lined with foil or paper, because circulation is needed. Wrapping food and drying containers help limit frost even though this model is advertised as automatic defrost. These basic conditions make later temperature observations more meaningful.
Record the five pairs without guessing a repair
On rendered PDF page 21, LED1 with LED2 indicates the refrigerator temperature sensor; LED1 with LED5, the freezer temperature sensor; LED1 with LED3, the freezer defrost sensor. LED2 with LED4 is the communication fault. The last row prints the unusual label “LED 1 indicator and LED 4 Ambient,” while its explanation says ambient temperature sensor fault. Report LED1/LED4 and that printed wording rather than silently rewriting it. LED1 alone appears in several rows, so a single lit position is not enough. Moreover, the normal medium setting is LED2 with LED5, different from every listed fault pair, and should be steady rather than flashing. Write down the pair, flashing sequence, compartment temperatures and time seen. The chart identifies the suspected area for qualified service; it supplies no owner procedure to open a sensor or circuit board.
Check doors and food before calling
If the white refrigerator fails to run at all, the troubleshooting table first checks its plug and household breaker. If the reversible door does not seal, move food packages out of the way, clean its gasket and level the cabinet. Warm room air, repeated opening and a large recent food load can extend compressor cycling, so note those conditions alongside a fault indication. A compartment that was disconnected needs its full cooling time; do not treat a quick touch of a shelf as a precise temperature test. Unplug before cleaning and use a nonflammable mild cleaner around the gasket. The manual tells owners not to repair the appliance themselves. If a pair repeatedly flashes after external checks, protect perishable food and contact a technician with the complete MRB19B7AWW model, panel photo, affected compartment and recent transport history. Keep the refrigerant system closed.
Verified model details
Exact white Canadian model and family manual
Source for this detailSteady set-point LEDs versus sequential fault flashes
Source for this detailFive paired indicators on physical PDF page 21
Source for this detailMove, clean and protect food safely
Source for this detail
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
18.7 Cu. Ft. 30" Bottom Mount Freezer White | Midea CA
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.