If the freezer has power and the compressor gives a short hum followed by a click, the start relay or relay-overload assembly is a real suspect. Unplug the freezer, match the relay to the model and compressor pins, photograph the wires, then replace only a part that seats exactly like the old one.
A warm freezer by itself is not enough reason to buy a relay. Check for power, a running fan if your model uses one, and the hum-click pattern at the compressor before you open the rear panel.
Before you start: Match the relay or relay overload assembly to the freezer model number, compressor pin pattern, terminal count, and wire layout. Stop for burned wiring, damaged compressor pins, refrigerant oil, or a part that will not seat without force.
A relay is worth replacing when the freezer has power and the compressor cannot start. It is not the first answer for a dead appliance, a steady-running warm freezer, or visible wiring damage.
This page fits when: The light or controls still work, the compressor gives a short hum followed by a click, and the old relay shows damage or matches the suspected failure pattern.
Check something else when: Unplug the freezer, open the rear access panel, and compare the relay-overload assembly to the model-number part before pulling wires.
This page fits when: The replacement matches the compressor pin pattern, overload position, wire terminals, retaining clip or cover, and any start-capacitor connection your model uses.
Check something else when: Use the full freezer model number and the old relay markings. Similar-looking relay blocks can have different terminal layouts.
This page fits when: The harness is clean, the compressor pins are straight and tight, and there is no burnt plug, oily residue, or damaged refrigerant tubing.
Check something else when: Call an appliance pro for burned harnesses, damaged compressor terminals, refrigerant oil, or repeated trip-off after a correctly matched relay.
The start relay plugs onto the compressor pins behind the lower rear access cover. Use the photos to identify the relay, look for heat damage, and dry-fit the replacement before any wire gets moved.
Use it for: Protects your hands around sharp rear panels and sheet metal edges.
Shop work gloves
Use it for: Removes the rear access panel on many freezers.
Shop nut driver set
Use it for: Removes screws and helps release clips or covers around the relay.
Shop screwdriver set
Use it for: Helps pull wire connectors off the relay without yanking the wires.
Shop needle-nose pliers
Use it for: Lets you record wire positions before removing the old relay.
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If it works: The freezer has power, the symptom is a compressor hum-click no-start, and the replacement matches the model and compressor connection style.
If it doesn’t: If the compressor runs steadily but the freezer stays warm, look at airflow, frost pattern, door sealing, and sealed-system issues instead of buying a relay.
If it works: The freezer is disconnected from power and the compressor area is exposed.
If it doesn’t: If you cannot safely reach the plug or move the freezer without pulling on tubing, stop and get better access before opening the compressor area.
If it works: You have identified the start relay and recorded how the old part is connected.
If it doesn’t: If you cannot clearly identify the relay, do not remove random connectors. Find the wire-connected part mounted directly on the compressor pins, or use the model-number parts diagram.
If it works: The old relay is off and the compressor terminals and wire connectors are exposed for inspection.
If it doesn’t: If the relay is stuck, wiggle it gently while pulling straight outward. Do not pry against the compressor pins.
If it works: The new relay is fully seated, the wires are back in the correct spots, and the rear panel is reinstalled.
If it doesn’t: If the new relay will not seat, stop and recheck the model number, pin pattern, overload style, and orientation before forcing it.
If it works: The compressor starts normally, the clicking is gone, and the freezer begins cooling again.
If it doesn’t: If the freezer still clicks, hums without starting, or will not cool after a matching relay is installed, stop parts-swapping. The fault may be the compressor, overload device, start capacitor if used, control wiring, or a sealed-system problem.
Match the relay and overload assembly to the freezer model and compressor terminals.
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A bad start relay often sounds like a brief compressor hum followed by a click, then the same pattern repeats a few minutes later. Check that the freezer still has power and listen from the lower rear before you order the relay.
Many homeowners can handle it if the freezer unplugs normally, the relay is accessible, and the new relay or relay-overload assembly matches the compressor terminals exactly. Stop if the wiring or compressor pins are burned.
No. A relay helps only when the start circuit is the failure. If the compressor runs but the cabinet stays warm, or the freezer has no power at all, the repair path is different.
You should usually hear a more normal compressor start right away. Cooling improvement takes longer, so give the freezer several hours to show a clear temperature drop.
Not always. Some freezers use a combined relay and overload assembly, and some also use a start capacitor. Match the full model number and the original terminal layout before adding parts.
These related Repair Riot appliance pages keep the symptom checks, relay fit notes, and stop conditions tied to freezer no-start and clicking-diagnosis cases.