Step-by-step fix
Step 1: Make sure the start relay is a likely match for the problem
- Listen near the back of the freezer for repeated clicking or a brief hum followed by a click-off.
- Check whether the interior light or control panel still works even though the freezer is not cooling properly.
- Pull the freezer slightly away from the wall and look for signs that the compressor is trying to start but will not stay running.
- Confirm you have the correct replacement relay for your exact freezer model before opening anything.
If it works: The symptoms point to a compressor start problem and you have a matching replacement relay ready.
If it doesn’t: If the freezer is completely dead with no lights or controls, check the outlet, cord, and breaker first because the relay may not be the main issue.
Stop if:- You smell strong burnt insulation, see melted wiring, or find obvious compressor damage.
- The compressor shell is leaking oil or looks physically damaged.
Step 2: Unplug the freezer and open the compressor area
- Unplug the freezer from the wall outlet.
- Move the freezer far enough to work comfortably behind it.
- Put on gloves before reaching around the lower rear panel.
- Remove the screws holding the rear access panel and set the panel and screws aside.
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, turn off the correct circuit before touching the rear access area.
Stop if:- The outlet, plug, or power cord shows heat damage or arcing marks.
Step 3: Locate the relay and document how it is installed
- Find the compressor, which is the black metal can near the bottom rear of the freezer.
- Look on the side of the compressor for a small relay assembly attached to the compressor terminals, sometimes under a plastic cover.
- Take a clear photo of the relay, wire positions, and any retaining clip before removing anything.
- If there is a cover or clip, remove it carefully and keep it with the screws.
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, compare the new part to the assembly on the compressor and look for the wire-connected piece mounted directly on the compressor terminals.
Stop if:- The part on the compressor does not match the replacement at all.
- The compressor terminals are cracked, loose, or badly burnt.
Step 4: Remove the old start relay
- Pull the wire connectors off the relay by gripping the connector, not the wire itself.
- Slide or pull the old relay straight off the compressor terminals.
- Check the old relay for rattling pieces, burn marks, or a melted smell, which often confirms failure.
- Inspect the wire terminals for corrosion or heat damage before installing the new part.
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 instead of prying hard against the compressor terminals.
Stop if:- A wire connector breaks apart, the terminal is badly overheated, or the compressor pins are damaged.
Step 5: Install the new relay and reassemble the cover
- Align the new relay the same way the old one sat on the compressor terminals.
- Push the new relay firmly into place until it is fully seated.
- Reconnect each wire to the same position shown in your photo.
- Reinstall any retaining clip or protective cover that came off earlier.
- Put the rear access panel back on and tighten the screws.
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 properly, stop and recheck part fitment and orientation before forcing it.
Stop if:- The replacement part does not fit the compressor terminals securely.
- Any wire connection feels loose after reconnecting it.
Step 6: Restore power and confirm the repair holds
- Plug the freezer back in.
- Listen for the compressor to start smoothly without repeated clicking.
- Let the freezer run for several minutes and check that the compressor stays running instead of cycling off immediately.
- After a few hours, confirm the freezer is getting colder and returning toward its normal temperature.
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 does not cool after the relay replacement, the problem may involve the compressor, overload device, capacitor if used, or another electrical fault.
Stop if:- The new relay gets hot quickly, you smell burning, or the compressor repeatedly trips off right away.
Replacement Parts
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FAQ
What does a bad freezer compressor start relay sound like?
A bad start relay often causes a repeated click, or a brief hum followed by a click as the compressor fails to start.
Can I replace a freezer compressor start relay myself?
Many homeowners can handle it if they unplug the freezer first, access the compressor safely, and install the exact matching part without forcing connections.
Will a new start relay fix every freezer that is not cooling?
No. It helps when the compressor cannot start because the relay has failed. If the compressor itself is bad or there is another electrical problem, replacing the relay alone will not solve it.
How long does it take to know if the repair worked?
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.
Do I need to replace anything else with the relay?
Not always. Some freezers use a relay assembly that works with an overload protector or related start components. If your replacement setup differs from the old one, match it to your exact model before installing.