Monogram ZIS420NNII 42-Inch Side-by-Side Refrigerator Repair

The ZIS420NNII is a side-by-side refrigerator at 42 inches, listed as current in the Monogram catalog and supplied for a custom panel and handle. The two tall compartments sit next to each other, with a refrigeration section on one side and a freezer-type section on the other. That arrangement is what makes this model feel different from the French-door units in the lineup.

How the side-by-side layout shapes diagnosis

Each side behaves as its own tall chamber. If one side is warm and the other fine, we start with the air path between them, because the cold air is shared and an obstruction on one side starves the other. A stuck damper, a blocked vent or a slow fan can all do that. Starting with the sealed system would be a poor first guess.

Typical complaints

• The tall door on one side will not stay shut when loaded.
• Ice-like frost accumulates on the back wall of the narrow side.
• An unusual amount of noise from the base after a long day.
• Water on the floor shortly after a defrost.

Frost near the door is a topic of its own, covered in Monogram freezer frost around door, and the advice there carries over to this layout.

Installing a 42-inch panel-ready unit

A wide opening means long panels, and long panels are heavy. Over time the hinge side can sag, and the latch side then rubs. In older San Francisco homes the surrounding frame may not be perfectly square, so we check the opening before we blame the refrigerator. We also check that the doors can open wide enough for the drawers and shelves to pull out, since a tight neighbor can stop them.

Safe steps you can take

1. Read power, breaker and GFCI.
2. Check that no bottle or tray props a door open.
3. Clean the gaskets on both doors.
4. Keep a note of which side feels warm and when.

What we explain at the end

Before leaving we tell you what we found on each side, what we did if you approved a repair and what to watch over the next days. We also show you how to load the compartments so the air can move, because a wide side-by-side is quick to suffer from crowded shelves. That advice stays with you long after the visit.

For more on how we work see Monogram refrigerator repair. The full catalog of sizes is on Monogram refrigerators. If you need a narrower unit in the same panel-ready family, look at Monogram ZIC363IPVLH repair.

Frequently asked questions