The short answer
Start with a defrost cycle that stops completing: on the BD models it accounts for more of this complaint than the rest of the list put together. The models here step through more than one size, so the causes that scale with load — and the ones that depend on where a component had to go to fit a larger body — move up the order.
What you observe
- Frost builds as a sheet on the back wall of the freezer — Not the usual light dusting — a solid skin you can knock with a knuckle.
- The compressor never seems to stop — It runs and runs without reaching temperature, which is the same fault seen from the other side.
- Condensation or a damp smell inside the fresh-food compartment — Warm air is reaching the cabinet, and it carries moisture with it.
- NEAR MISS — the unit is silent and nothing is cold — That is a no-power or start-circuit fault, and it belongs on a different page.
Causes, most likely first on the BD line
- A defrost cycle that stops completing — Ranked first here — it produces exactly this complaint — a running unit and a warm cabinet — while every other symptom stays normal for weeks.
- An evaporator fan that has stopped turning — Second here — it is a moving part under frost and it produces the same warm cabinet from a different component.
- A door gasket no longer pulling the door shut — Third here — it degrades slowly and the owner adapts to it long before noticing the cabinet is warm.
- A compressor start relay or overload that has given up — Fourth here — it usually announces itself with a repeated click rather than with a quietly warming cabinet.
- Body: This line is a size ladder rather than a set of finishes, so load and layout drive the ranking more than component age does. Here the posture changes no positions — the causes on this page are far enough apart in likelihood that nothing moves.
Check in this order, and why
- Empty the freezer, leave the door open and let the cabinet stand warm overnight — If cold returns afterwards and then fades again over days, the defrost system is the cause and nothing else needs testing.
- Open the freezer door, hold the door switch in and listen for the fan — A fan you cannot hear with the switch held in separates this cause from the other likely one before any tool comes out.
- Shut a sheet of paper in the door and pull it out — Do it at four points on each side.
- Listen at the compressor for a click every few minutes with no run that follows — A click-and-silence pattern is the start circuit; a steady hum is not.
- Body: These models differ in size, so the same component is not in the same place on every one of them. Work from the checks that are identical across the line toward the ones that depend on which body you have. Every check pairs with the cause at the same position, which is what makes a negative result useful rather than merely disappointing.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off. Do not chip ice off an evaporator with anything metal: the tubing behind it is thin-walled, and a puncture turns a cheap repair into a sealed-system job.
Models in the BD family — Every model this page covers, exactly as the model line is recorded. Nothing outside this table is a model number, and nothing on this page claims to cover a model that is not in it.
Reference| Model number | Family key |
|---|---|
| BD-150 | amana:refrigerator:bd |
| BD-150-01 | amana:refrigerator:bd |
| BD-200 | amana:refrigerator:bd |
| BD-200-01 | amana:refrigerator:bd |
| BD-255 | amana:refrigerator:bd |
| BD-255-01 | amana:refrigerator:bd |
When to call a technician
Call once the owner checks above come back clean, and call at once if the fault is on the sealed system — refrigerant work is licensed work and the tools for it are not owner tools. Oil at the compressor, or a burning smell from the back of the cabinet, is a stop-now condition: every hour it runs after that costs more to put right.
Nearest pages of this class
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
