Does this apply to every USBSR model?

It applies to the models listed in the table on this page. Where one differs, the difference is in access rather than in the ranking of causes.

Will my food be safe while I wait?

Move anything perishable into a cooler with ice. A refrigerator holds food safely at 40 degrees Fahrenheit or below, and a warm cabinet does not buy you much time.

I defrosted it and it worked for a week. What happened?

A manual defrost clears the ice but not the reason it formed. When the frost returns on that timescale, the defrost heater or its thermostat is the real fault.

Does moving the unit help?

It does when the unit has been pushed tight against a wall. A hand-width of clearance behind the cabinet lets the coil do what it was designed to do.

Why is the back of the shelf warmer than the door?

That is reversed from the usual pattern and points at air distribution rather than at cooling capacity. Check nothing is packed against the vent.

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Back to Blog

Brand=Bangson|Family=Bangson-Refrigerator-Usbsr|Appliance=Refrigerator|Symptom=Cooling-Failure8 min read

Bangson USBSR Refrigerator: Not Cooling or Not Freezing

Sarah Chen·Lead Appliance Repair Technician

2026-09-24·8 min read·EPA 608 Universal

Table of Contents

Start here

The machine can run continuously and still lose ground. The usual reason is an evaporator sheeted in ice, which stops the fan from pushing air over it; the cabinet then warms even though the compressor never stops trying. On the USBSR line specifically, the platform's layout is what decides which of those gets checked first.

What this looks like on a USBSR unit

A sheet of frost on the freezer rear panel — Not the usual light dusting, but a solid layer that keeps rebuilding after you clear it. This is the USBSR tell that separates the branches.
Ice cream is soft but the freezer thermometer reads close to normal — A freezer drifting only a few degrees warm shows first in the softest thing in it.
The unit recovered for a day after the door was left open, then failed again — A one-off ice load that cleared and came back, which points at the defrost cycle rather than at the door.
NEAR MISS: the cabinet is cold but there is water on the floor — A unit that still cools while it leaks is a drain or supply-line problem, not this.

Causes in likelihood order on the USBSR line

Airflow blocked by a frosted evaporator — Ranked first because it builds slowly and quietly: the defrost cycle stalls before it fails outright, ice sheets over the coil for weeks, and the owner notices the warmth long before the frost. On the USBSR models this stays at the top because nothing about the platform makes it less likely.
A stopped evaporator fan motor — Second, because it produces the same warm cabinet with none of the frost to show for it. The fan sits behind the freezer rear panel and is the part that wears first in this position.
A control board or thermistor reading the cabinet wrongly — Less common, and it usually announces itself by odd behaviour elsewhere — a compressor that short-cycles, or a setting that will not hold.
A sealed-system or compressor fault — Last, and that ranking is the point of this page: it is the least likely cause on the list and the only one that is not an owner check. Anyone naming it first has skipped every cheaper answer above it.

Where to start, and why

Open the freezer and listen for the circulating fan — It separates the two likeliest causes before a single tool comes out: a fan you can hear rules out the stopped-motor branch. The USBSR layout is the reason it comes first here.
Count how long the unit has been in its current position — A unit pushed back tight against a wall after a kitchen move has a heat-rejection problem that has nothing wrong with it at all.
Compare against what the appliance did a month ago — A gradual slide is airflow or a coil; an overnight failure is a fan, a relay or a door.

Isolate it first

Safety

Switch the breaker off before opening anything, because a capacitor can stay charged after the power is off. Treat every tube at the back as pressurised. Refrigerant work is licensed work, and the tools for it are not owner tools.

Models in the USBSR family

Reference

Model number	Family key
US-BSR-001	bangson:refrigerator:usbsr
US-BSR-002	bangson:refrigerator:usbsr
US-BSR-003	bangson:refrigerator:usbsr
US-BSR-004	bangson:refrigerator:usbsr
US-BSR-005	bangson:refrigerator:usbsr
US-BSR-006	bangson:refrigerator:usbsr
US-BSR-007	bangson:refrigerator:usbsr
US-BSR-007-1	bangson:refrigerator:usbsr
US-BSR-007-2	bangson:refrigerator:usbsr
US-BSR-007-3	bangson:refrigerator:usbsr
US-BSR-0075	bangson:refrigerator:usbsr
US-BSR-00753	bangson:refrigerator:usbsr
US-BSR-00754	bangson:refrigerator:usbsr
US-BSR-00755	bangson:refrigerator:usbsr
US-BSR-00756	bangson:refrigerator:usbsr
US-BSR-0075SL	bangson:refrigerator:usbsr
US-BSR-007A	bangson:refrigerator:usbsr
US-BSR-008	bangson:refrigerator:usbsr
US-BSR-008-1	bangson:refrigerator:usbsr
US-BSR-008-2	bangson:refrigerator:usbsr
US-BSR-008-3	bangson:refrigerator:usbsr
US-BSR-008A	bangson:refrigerator:usbsr
US-BSR-009	bangson:refrigerator:usbsr
US-BSR-017	bangson:refrigerator:usbsr
US-BSR-017-2	bangson:refrigerator:usbsr
US-BSR-0176	bangson:refrigerator:usbsr
US-BSR-0178	bangson:refrigerator:usbsr
US-BSR-018	bangson:refrigerator:usbsr
US-BSR-019	bangson:refrigerator:usbsr
US-BSR-019-2	bangson:refrigerator:usbsr
US-BSR-0196	bangson:refrigerator:usbsr
US-BSR-0198	bangson:refrigerator:usbsr
US-BSR-026	bangson:refrigerator:usbsr
US-BSR-028	bangson:refrigerator:usbsr
US-BSR-028-2	bangson:refrigerator:usbsr
US-BSR-028WH	bangson:refrigerator:usbsr
US-BSR-036	bangson:refrigerator:usbsr
US-BSR-038	bangson:refrigerator:usbsr
US-BSR-038WH	bangson:refrigerator:usbsr
US-BSR-100	bangson:refrigerator:usbsr
US-BSR-100-1	bangson:refrigerator:usbsr
US-BSR-100-2	bangson:refrigerator:usbsr
US-BSR-100-3	bangson:refrigerator:usbsr
US-BSR-100A	bangson:refrigerator:usbsr
US-BSR-101	bangson:refrigerator:usbsr
US-BSR-101-1	bangson:refrigerator:usbsr
US-BSR-101-2	bangson:refrigerator:usbsr
US-BSR-101-3	bangson:refrigerator:usbsr
US-BSR-101A	bangson:refrigerator:usbsr
US-BSR-102	bangson:refrigerator:usbsr
US-BSR-102-2	bangson:refrigerator:usbsr
US-BSR-102A	bangson:refrigerator:usbsr
US-BSR-103	bangson:refrigerator:usbsr
US-BSR-104	bangson:refrigerator:usbsr
US-BSR-105	bangson:refrigerator:usbsr
US-BSR-106	bangson:refrigerator:usbsr
US-BSR-107	bangson:refrigerator:usbsr
US-BSR-108	bangson:refrigerator:usbsr
US-BSR-109	bangson:refrigerator:usbsr
US-BSR-200	bangson:refrigerator:usbsr
US-BSR-200-1	bangson:refrigerator:usbsr
US-BSR-200-2	bangson:refrigerator:usbsr
US-BSR-200RE	bangson:refrigerator:usbsr
US-BSR-200WH	bangson:refrigerator:usbsr
US-BSR-200WH-1	bangson:refrigerator:usbsr
US-BSR-201	bangson:refrigerator:usbsr
US-BSR-203	bangson:refrigerator:usbsr
US-BSR-204	bangson:refrigerator:usbsr
US-BSR-205	bangson:refrigerator:usbsr
US-BSR-207	bangson:refrigerator:usbsr
US-BSR-300	bangson:refrigerator:usbsr
US-BSR-300-1	bangson:refrigerator:usbsr
US-BSR-300-2	bangson:refrigerator:usbsr
US-BSR-300-3	bangson:refrigerator:usbsr
US-BSR-300A	bangson:refrigerator:usbsr
US-BSR-301	bangson:refrigerator:usbsr
US-BSR-301-1	bangson:refrigerator:usbsr
US-BSR-301-2	bangson:refrigerator:usbsr
US-BSR-301-3	bangson:refrigerator:usbsr
US-BSR-301A	bangson:refrigerator:usbsr
US-BSR-302	bangson:refrigerator:usbsr
US-BSR-303	bangson:refrigerator:usbsr
US-BSR-304	bangson:refrigerator:usbsr
US-BSR-305	bangson:refrigerator:usbsr
US-BSR-306	bangson:refrigerator:usbsr
US-BSR-307	bangson:refrigerator:usbsr
US-BSR-308	bangson:refrigerator:usbsr
US-BSR-309	bangson:refrigerator:usbsr
US-BSR-310	bangson:refrigerator:usbsr
US-BSR-311	bangson:refrigerator:usbsr
US-BSR-600	bangson:refrigerator:usbsr
US-BSR-601	bangson:refrigerator:usbsr
US-BSR-602	bangson:refrigerator:usbsr
US-BSR-603	bangson:refrigerator:usbsr
US-BSR-610	bangson:refrigerator:usbsr
US-BSR-610VX	bangson:refrigerator:usbsr
US-BSR-610VXRE	bangson:refrigerator:usbsr
US-BSR-610VXWH	bangson:refrigerator:usbsr
US-BSR-611	bangson:refrigerator:usbsr
US-BSR-612	bangson:refrigerator:usbsr
US-BSR-613	bangson:refrigerator:usbsr
US-BSR-620	bangson:refrigerator:usbsr
US-BSR-620VX	bangson:refrigerator:usbsr
US-BSR-620VXRE	bangson:refrigerator:usbsr
US-BSR-620VXWH	bangson:refrigerator:usbsr
US-BSR-621	bangson:refrigerator:usbsr
US-BSR-625VX	bangson:refrigerator:usbsr
US-BSR-628VX	bangson:refrigerator:usbsr

When to call a technician

Once frost, coil, gasket and vent have all been ruled out, the remaining causes need a meter and a manifold, and both belong to a technician. Call sooner if the cabinet is warming while the compressor is silent — that is a different and more urgent fault.

Other pages like this one for the USBSR line

Frequently Asked Questions

Does this apply to every USBSR model?: It applies to the models listed in the table on this page. Where one differs, the difference is in access rather than in the ranking of causes.
Will my food be safe while I wait?: Move anything perishable into a cooler with ice. A refrigerator holds food safely at 40 degrees Fahrenheit or below, and a warm cabinet does not buy you much time.
I defrosted it and it worked for a week. What happened?: A manual defrost clears the ice but not the reason it formed. When the frost returns on that timescale, the defrost heater or its thermostat is the real fault.
Does moving the unit help?: It does when the unit has been pushed tight against a wall. A hand-width of clearance behind the cabinet lets the coil do what it was designed to do.
Why is the back of the shelf warmer than the door?: That is reversed from the usual pattern and points at air distribution rather than at cooling capacity. Check nothing is packed against the vent.

Need this fixed for good?

Can't fix it yourself? Our vetted technicians are ready to help.

Book a Free Diagnostic Visit

Same-day service • 90-day warranty • Free diagnostic visit

Call NowAvailable 24/7 — call or textBook Online

Need Brand=Bangson|Family=Bangson-Refrigerator-Usbsr|Appliance=Refrigerator|Symptom=Cooling-Failure Repair?

(415) 795-7300Available 24/7 — call or textBook Free Diagnosis

Back to Blog

Brand=Bangson|Family=Bangson-Refrigerator-Usbsr|Appliance=Refrigerator|Symptom=Cooling-Failure8 min read

Bangson USBSR Refrigerator: Not Cooling or Not Freezing

Sarah Chen·Lead Appliance Repair Technician

2026-09-24·8 min read·EPA 608 Universal

Table of Contents

Start here

What this looks like on a USBSR unit

A sheet of frost on the freezer rear panel — Not the usual light dusting, but a solid layer that keeps rebuilding after you clear it. This is the USBSR tell that separates the branches.
Ice cream is soft but the freezer thermometer reads close to normal — A freezer drifting only a few degrees warm shows first in the softest thing in it.
The unit recovered for a day after the door was left open, then failed again — A one-off ice load that cleared and came back, which points at the defrost cycle rather than at the door.
NEAR MISS: the cabinet is cold but there is water on the floor — A unit that still cools while it leaks is a drain or supply-line problem, not this.

Causes in likelihood order on the USBSR line

Airflow blocked by a frosted evaporator — Ranked first because it builds slowly and quietly: the defrost cycle stalls before it fails outright, ice sheets over the coil for weeks, and the owner notices the warmth long before the frost. On the USBSR models this stays at the top because nothing about the platform makes it less likely.
A stopped evaporator fan motor — Second, because it produces the same warm cabinet with none of the frost to show for it. The fan sits behind the freezer rear panel and is the part that wears first in this position.
A control board or thermistor reading the cabinet wrongly — Less common, and it usually announces itself by odd behaviour elsewhere — a compressor that short-cycles, or a setting that will not hold.
A sealed-system or compressor fault — Last, and that ranking is the point of this page: it is the least likely cause on the list and the only one that is not an owner check. Anyone naming it first has skipped every cheaper answer above it.

Where to start, and why

Open the freezer and listen for the circulating fan — It separates the two likeliest causes before a single tool comes out: a fan you can hear rules out the stopped-motor branch. The USBSR layout is the reason it comes first here.
Count how long the unit has been in its current position — A unit pushed back tight against a wall after a kitchen move has a heat-rejection problem that has nothing wrong with it at all.
Compare against what the appliance did a month ago — A gradual slide is airflow or a coil; an overnight failure is a fan, a relay or a door.

Isolate it first

Safety

Models in the USBSR family

Reference

Model number	Family key
US-BSR-001	bangson:refrigerator:usbsr
US-BSR-002	bangson:refrigerator:usbsr
US-BSR-003	bangson:refrigerator:usbsr
US-BSR-004	bangson:refrigerator:usbsr
US-BSR-005	bangson:refrigerator:usbsr
US-BSR-006	bangson:refrigerator:usbsr
US-BSR-007	bangson:refrigerator:usbsr
US-BSR-007-1	bangson:refrigerator:usbsr
US-BSR-007-2	bangson:refrigerator:usbsr
US-BSR-007-3	bangson:refrigerator:usbsr
US-BSR-0075	bangson:refrigerator:usbsr
US-BSR-00753	bangson:refrigerator:usbsr
US-BSR-00754	bangson:refrigerator:usbsr
US-BSR-00755	bangson:refrigerator:usbsr
US-BSR-00756	bangson:refrigerator:usbsr
US-BSR-0075SL	bangson:refrigerator:usbsr
US-BSR-007A	bangson:refrigerator:usbsr
US-BSR-008	bangson:refrigerator:usbsr
US-BSR-008-1	bangson:refrigerator:usbsr
US-BSR-008-2	bangson:refrigerator:usbsr
US-BSR-008-3	bangson:refrigerator:usbsr
US-BSR-008A	bangson:refrigerator:usbsr
US-BSR-009	bangson:refrigerator:usbsr
US-BSR-017	bangson:refrigerator:usbsr
US-BSR-017-2	bangson:refrigerator:usbsr
US-BSR-0176	bangson:refrigerator:usbsr
US-BSR-0178	bangson:refrigerator:usbsr
US-BSR-018	bangson:refrigerator:usbsr
US-BSR-019	bangson:refrigerator:usbsr
US-BSR-019-2	bangson:refrigerator:usbsr
US-BSR-0196	bangson:refrigerator:usbsr
US-BSR-0198	bangson:refrigerator:usbsr
US-BSR-026	bangson:refrigerator:usbsr
US-BSR-028	bangson:refrigerator:usbsr
US-BSR-028-2	bangson:refrigerator:usbsr
US-BSR-028WH	bangson:refrigerator:usbsr
US-BSR-036	bangson:refrigerator:usbsr
US-BSR-038	bangson:refrigerator:usbsr
US-BSR-038WH	bangson:refrigerator:usbsr
US-BSR-100	bangson:refrigerator:usbsr
US-BSR-100-1	bangson:refrigerator:usbsr
US-BSR-100-2	bangson:refrigerator:usbsr
US-BSR-100-3	bangson:refrigerator:usbsr
US-BSR-100A	bangson:refrigerator:usbsr
US-BSR-101	bangson:refrigerator:usbsr
US-BSR-101-1	bangson:refrigerator:usbsr
US-BSR-101-2	bangson:refrigerator:usbsr
US-BSR-101-3	bangson:refrigerator:usbsr
US-BSR-101A	bangson:refrigerator:usbsr
US-BSR-102	bangson:refrigerator:usbsr
US-BSR-102-2	bangson:refrigerator:usbsr
US-BSR-102A	bangson:refrigerator:usbsr
US-BSR-103	bangson:refrigerator:usbsr
US-BSR-104	bangson:refrigerator:usbsr
US-BSR-105	bangson:refrigerator:usbsr
US-BSR-106	bangson:refrigerator:usbsr
US-BSR-107	bangson:refrigerator:usbsr
US-BSR-108	bangson:refrigerator:usbsr
US-BSR-109	bangson:refrigerator:usbsr
US-BSR-200	bangson:refrigerator:usbsr
US-BSR-200-1	bangson:refrigerator:usbsr
US-BSR-200-2	bangson:refrigerator:usbsr
US-BSR-200RE	bangson:refrigerator:usbsr
US-BSR-200WH	bangson:refrigerator:usbsr
US-BSR-200WH-1	bangson:refrigerator:usbsr
US-BSR-201	bangson:refrigerator:usbsr
US-BSR-203	bangson:refrigerator:usbsr
US-BSR-204	bangson:refrigerator:usbsr
US-BSR-205	bangson:refrigerator:usbsr
US-BSR-207	bangson:refrigerator:usbsr
US-BSR-300	bangson:refrigerator:usbsr
US-BSR-300-1	bangson:refrigerator:usbsr
US-BSR-300-2	bangson:refrigerator:usbsr
US-BSR-300-3	bangson:refrigerator:usbsr
US-BSR-300A	bangson:refrigerator:usbsr
US-BSR-301	bangson:refrigerator:usbsr
US-BSR-301-1	bangson:refrigerator:usbsr
US-BSR-301-2	bangson:refrigerator:usbsr
US-BSR-301-3	bangson:refrigerator:usbsr
US-BSR-301A	bangson:refrigerator:usbsr
US-BSR-302	bangson:refrigerator:usbsr
US-BSR-303	bangson:refrigerator:usbsr
US-BSR-304	bangson:refrigerator:usbsr
US-BSR-305	bangson:refrigerator:usbsr
US-BSR-306	bangson:refrigerator:usbsr
US-BSR-307	bangson:refrigerator:usbsr
US-BSR-308	bangson:refrigerator:usbsr
US-BSR-309	bangson:refrigerator:usbsr
US-BSR-310	bangson:refrigerator:usbsr
US-BSR-311	bangson:refrigerator:usbsr
US-BSR-600	bangson:refrigerator:usbsr
US-BSR-601	bangson:refrigerator:usbsr
US-BSR-602	bangson:refrigerator:usbsr
US-BSR-603	bangson:refrigerator:usbsr
US-BSR-610	bangson:refrigerator:usbsr
US-BSR-610VX	bangson:refrigerator:usbsr
US-BSR-610VXRE	bangson:refrigerator:usbsr
US-BSR-610VXWH	bangson:refrigerator:usbsr
US-BSR-611	bangson:refrigerator:usbsr
US-BSR-612	bangson:refrigerator:usbsr
US-BSR-613	bangson:refrigerator:usbsr
US-BSR-620	bangson:refrigerator:usbsr
US-BSR-620VX	bangson:refrigerator:usbsr
US-BSR-620VXRE	bangson:refrigerator:usbsr
US-BSR-620VXWH	bangson:refrigerator:usbsr
US-BSR-621	bangson:refrigerator:usbsr
US-BSR-625VX	bangson:refrigerator:usbsr
US-BSR-628VX	bangson:refrigerator:usbsr

When to call a technician

Other pages like this one for the USBSR line

Frequently Asked Questions

Does this apply to every USBSR model?: It applies to the models listed in the table on this page. Where one differs, the difference is in access rather than in the ranking of causes.
Will my food be safe while I wait?: Move anything perishable into a cooler with ice. A refrigerator holds food safely at 40 degrees Fahrenheit or below, and a warm cabinet does not buy you much time.
I defrosted it and it worked for a week. What happened?: A manual defrost clears the ice but not the reason it formed. When the frost returns on that timescale, the defrost heater or its thermostat is the real fault.
Does moving the unit help?: It does when the unit has been pushed tight against a wall. A hand-width of clearance behind the cabinet lets the coil do what it was designed to do.
Why is the back of the shelf warmer than the door?: That is reversed from the usual pattern and points at air distribution rather than at cooling capacity. Check nothing is packed against the vent.

Need this fixed for good?

Can't fix it yourself? Our vetted technicians are ready to help.

Book a Free Diagnostic Visit

Same-day service • 90-day warranty • Free diagnostic visit

Call NowAvailable 24/7 — call or textBook Online

Need Brand=Bangson|Family=Bangson-Refrigerator-Usbsr|Appliance=Refrigerator|Symptom=Cooling-Failure Repair?

(415) 795-7300Available 24/7 — call or textBook Free Diagnosis

Bangson USBSR Refrigerator: Not Cooling or Not Freezing

Start here

What this looks like on a USBSR unit

Causes in likelihood order on the USBSR line

Where to start, and why

Isolate it first

Models in the USBSR family

When to call a technician

Other pages like this one for the USBSR line

Read next

Frequently Asked Questions

Need this fixed for good?

Bangson USBSR Refrigerator: Not Cooling or Not Freezing

Start here

What this looks like on a USBSR unit

Causes in likelihood order on the USBSR line

Where to start, and why

Isolate it first

Models in the USBSR family

When to call a technician

Other pages like this one for the USBSR line

Read next

Frequently Asked Questions

Need this fixed for good?