
To run the test perform the following steps:
- Turn the FLA dial back to its proper setting and let the motor run for at least 5 minutes.
- Open the contact (or) while the motor is running and start a timer.
- The overload should trip in around 3 seconds, or within 10 seconds maximum.
How to test the start relay of a refrigerator?
How to test the start relay: One of the symptoms that the relay is damaged is when the refrigerator heats up and certain clicks can be heard. Before replacing it by a new start relay, do the test to discover if it really is the part which has a problem. Learn to test the start relay of the compressor: 1.
How do I know if my freezer start relay is bad?
You may notice that there is no humming sound yet the temperatures inside of the freezer and the fresh food compartment are on the rise. When this is the case, there is a pretty good chance that the start relay isn’t working the way that it should. Perhaps the most effective way to test the start relay is by performing a physical test.
How to test the start relay of the compressor?
Learn to test the start relay of the compressor: 1. Disconnect the refrigerator As you are going to work in the rear part, for your protection, the appliance should not be energized.
How do you test a start relay with a multimeter?
Connect your multimeter to the terminals on the start relay, set it to the correct voltage, and perform the test. If the multimeter has a low reading, that means that your start relay is bad and needs to be replaced. Can You Bypass a Refrigerator Start Relay?

How do you bypass a freezer relay?
You'll need to remove the metal connecter attaching it to the relay system first and then use pliers to strip some of the wire (no more than ¼ inch) on either side. Using electrical tape, connect both ends of the wire back to the relay housing so it completely bypasses the missing relay and closes the circuit.
How do you know if a refrigerator relay is bad?
Signs and Symptoms of a Bad Start Relay on a RefrigeratorRefrigerator Not Cooling. The most obvious sign that your start relay isn't working is the lack of cooling caused when the compressor never starts up. ... Clicking Relay Noise. ... The Shake and Rattle Test. ... Replacing the Start Relay.
How do you test a refrigerator relay switch?
Pull the female wire connector off the male terminal on the side of the relay switch. ... Look for any corrosion on the copper windings. ... Test the solid state relay by shaking it. ... Turn the dial on a multimeter to "Ohms X1." Insert both the probes from the multimeter into the two female terminals on the relay.More items...
How do you test a capacitor relay on a refrigerator?
2:554:02How to test & troubleshoot appliance capacitors - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou can use a multimeter with a continuity setting to check if the capacitor is charging andMoreYou can use a multimeter with a continuity setting to check if the capacitor is charging and discharging.
How do you test a starter relay with a multimeter?
Using your multimeter, place probes on both the ground lead and ignition circuit terminal. If the reading is more than 5 Ohms, your starter relay needs replacement. You can also use a wire jumper to check for resistance.
Can you bypass start relay on refrigerator?
While it's possible to bypass the start relay on your refrigerator, you should only do so in extraordinary circumstances. Furthermore, you should never use the bypass method for a long time; the start relay's purpose is to prevent your fridge from overheating.
How do you check a relay?
The only tool required to check a relay is a multimeter. With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located).
How does a fridge starter relay work?
The hard-start kit relay connects and disconnects the electrolytic motor's starting capacitor into the motor's start-winding circuit. The relay -- either a current relay or a potential relay -- automatically disconnects the start capacitor when the motor reaches two-thirds its operating speed.
How do I reset my freezer compressor?
So your fridge is having internal problems, and you need to reset its compressor?...4 steps to reset a refrigerator compressorUnplug your refrigerator. ... Turn off the refrigerator and freezer from the control panel. ... Reset your freezer and fridge temperature settings. ... Wait for the refrigerator temperature to stabilize.
How do you check a capacitor with a multimeter?
2:199:39How To Check HVAC Capacitor With Multimeter - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou'll have to have a setting that says mfd for microfarads. Or it'll say uf. With like a backwardsMoreYou'll have to have a setting that says mfd for microfarads. Or it'll say uf. With like a backwards looking u. So you set your multimeter to that. And we can now check our capacitor.
What is difference between starting capacitor and running capacitor?
The start capacitor creates a current to voltage lag in the separate start windings of the motor. The current builds up slowly, and the armature has an opportunity to begin rotating with the field of current. A run capacitor uses the charge in the dielectric to boost the current which provides power to the motor.
How do you test a capacitor with a cheap multimeter?
To test the capacitor with a multimeter, set the meter to read in the high ohms range, somewhere above 10k and 1m ohms. Touch the meter leads to the corresponding leads on the capacitor, red to positive and black to negative. The meter should start at zero and then moving slowly toward infinity.
How do you check a refrigerator start relay?
Step 1: With the relay in the vertical position, coil downwards, check if there is continuity between terminals 10 and 11 of the relay. If there is not, change the relay. Step 2: With the relay in the vertical position, coil upwards, check if there is continuity between terminals 10 and 11 of the relay.
How much does a fridge relay cost?
Refrigerator Relay at Rs 40/piece(s) | Refrigeration Relays in Chennai | ID: 11472663648.
How do you fix a refrigerator relay?
0:241:11How to Replace a Refrigerator Compressor Start Relay - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe run capacitor from the old start relay to the new one plug in the wire harness plug. The newMoreThe run capacitor from the old start relay to the new one plug in the wire harness plug. The new start relay into the compressor terminals reinstall the wire retainer to hold the start relay in place.
What does a refrigerator relay do?
The hard-start kit relay connects and disconnects the electrolytic motor's starting capacitor into the motor's start-winding circuit. The relay -- either a current relay or a potential relay -- automatically disconnects the start capacitor when the motor reaches two-thirds its operating speed.
How to test a relay?from refrigeratorsreviewed.com
Another way to test it is to place the relay vertically, ensuring its coil faces up. Then, check for continuity between terminal 3 and terminal 1. If you find no continuity, replace the relay. But if you place the relay vertically, with the coil facing down this time , and you find continuity between the two terminals as before, replace the component.
How to remove relay from refrigerator?from refrigeratorsreviewed.com
You will find a metal box on the lower right side of the compressor compartment. Push and detach the box from the refrigerator. When you remove it, you will find the relay there. Using a flat-head screwdriver, press the gap between the case and the relay itself. This action releases the relay from the case. So, remove it and slide its wire out to make the case more accessible.
What Does a Refrigerator Compressor Relay Do?from refrigeratorsreviewed.com
The start relay on a refrigerator compressor is a device that powers and protects the compressor. Typically, the compressor needs a boost of power whenever it wants to start and run. The relay supplies the needed power. And when the compressor draws more power than it needs, the overload relay protects it from burning itself out.
How to disconnect a compressor wire?from refrigeratorsreviewed.com
Disconnect the wires connecting the assembly to the compressor with the pliers. You may need to take a photo to note where each wire goes. Then, separate the relay and overload and discard them. Next, take the new relay and overload assembly, and connect the wires to the appropriate terminals. Your photo will come in handy here if necessary.
How to connect a refrigerator to a relay?from refrigeratorsreviewed.com
Disconnect the wire connector from the relay and separate the capacitor from the relay. Fix the capacitor to the new relay and reconnect the wire connector. Connect the relay to the terminals of the compressor and reinsert the wire retainer to secure the relay. Cover the compartment with the access panel, and reconnect the refrigerator to electric power or turn on the circuit breaker.
How to check if a relay is in continuity?from refrigerationclub.com
Step 1: With the relay in any position, check if there is continuity between terminals 1 and 2 of the relay. If there is not, change the relay. Step 2: With the relay in the vertical position, coil of the relay upwards, check if there is continuity between terminals 1 and 3 of the relay. If there is not, change the relay and repeat step 1.
Why won't my refrigerator cool?from refrigeratorsreviewed.com
If your refrigerator does not cool at all or colls but not enough, the relay may be bad. The compressor may not run due to the bad relay, and if the compressor fails to run, the refrigerator won’t cool.
Where is the compressor relay on a freezer?
Check out freezer compressor relays on Amazon. The compressor relay is located at the lower bottom of the freezer, beneath the terminal cover. Pull it off of the compressor and use the needle-nose pliers to pull the connector that connects the wire on the side terminal of the relay.
How to read 0 ohms on a relay?
Set the multitester to X1 and place the relay upside down. Put the multitester probes into the S and the M terminals. It should read 0 ohms. Keeping the probes plugged in, turn the relay right side up. The magnetic switch should engage and the multitester should read infinity.
Can you test a freezer compressor?
Testing your freezer compressor is not difficult and can save you money on a repair visit. If you are up to the task, unplug your freezer and pull it out so that the back is exposed for you to work on.
How to connect a refrigerator to a relay?from refrigeratorsreviewed.com
Disconnect the wire connector from the relay and separate the capacitor from the relay. Fix the capacitor to the new relay and reconnect the wire connector. Connect the relay to the terminals of the compressor and reinsert the wire retainer to secure the relay. Cover the compartment with the access panel, and reconnect the refrigerator to electric power or turn on the circuit breaker.
How to purchase compressor relay?from refrigeratorsreviewed.com
Always purchase a compressor relay using the brand and number of your refrigerator. Some refrigerators are specific in the parts that work with them. Contact the brand manufacturer for replacement parts if they are hard to find in hardware stores. But you may find them online.
What Does a Refrigerator Compressor Relay Do?from refrigeratorsreviewed.com
The start relay on a refrigerator compressor is a device that powers and protects the compressor. Typically, the compressor needs a boost of power whenever it wants to start and run. The relay supplies the needed power. And when the compressor draws more power than it needs, the overload relay protects it from burning itself out.
How to disconnect a compressor wire?from refrigeratorsreviewed.com
Disconnect the wires connecting the assembly to the compressor with the pliers. You may need to take a photo to note where each wire goes. Then, separate the relay and overload and discard them. Next, take the new relay and overload assembly, and connect the wires to the appropriate terminals. Your photo will come in handy here if necessary.
How to tell if a refrigerator compressor has no markings?from refrigeratorsreviewed.com
Some compressors will mark them with alphabets S, R, and C while others won’t. So, if your refrigerator compressor has no markings, set the meter to R x 1 scale. Then, locate the two electrical pins out of the three with the highest resistance reading.
Why won't my refrigerator cool?from refrigeratorsreviewed.com
If your refrigerator does not cool at all or colls but not enough, the relay may be bad. The compressor may not run due to the bad relay, and if the compressor fails to run, the refrigerator won’t cool.
Why does my refrigerator not make a sound?from refrigeratorsreviewed.com
And a few times, it cycles off for a few minutes before cycling on again. If the refrigerator remains without sound, the relay may be faulty.
How do I know if my freezer relay is bad?
The Shake and Rattle Test Unplug the start relay from the compressor and give it a shake. If you can hear rattling on the inside of the start relay, then the part is bad and will have to be replaced. If it’s not rattling and appears to be in good condition, you may have a problem with the actual compressor.
How do you bypass the start relay on a freezer compressor?
Use a flathead screwdriver to press down on the space between the relay and its casing. Then, press on the relay itself and pull it out to remove it from the refrigerator. Slide the wire from the relay so it’s accessible.
How do I know if my compressor relay is bad?
Signs of a Bad or Failing AC Compressor Relay Inconsistent cooling. The AC compressor is powered by the relay. AC compressor is not turning on. One of the most obvious signs that the AC relay may have a problem is that the compressor is not coming on at all. No cold air.
What causes a refrigerator relay to go bad?
Refrigerator relays protect the fridge from electrical damage. An electrical surge can be one reason that a relay will fail and overload. When the resistance of the wire impedes the electrical current, the wires can become hot and begin to melt. An electrical surge can cause this to occur.
How do you test an overload relay?
Overload Protection Test: Measure the normal motor running current (i motor). Turn off the motor and let it cool for about 10 minutes. Calculate the following ratio: i (motor) / i (overload min FLA). Set the overload to its minimum FLA and turn on the motor. Wait for the overload to trip.
What is the starter relay?
One of the most important – and most forgotten – components of any vehicle’s ignition system is the starter relay. This electrical part is designed to redirect power from the battery to the starter solenoid, which then activates the starter to spin over the engine.
What does a start relay do in a refrigerator?
A refrigerator start relay is a device that jump-starts the compressor inside the refrigerator. If the refrigerator start relay is burned out, then the compressor may not work and the interior will not freeze.
Where is the start relay on a refrigerator?
To find the start relay, locate it by looking in the same compartment where the compressor is located (this is usually plugged somewhere in the back of the main compartment of the fridge). Disconnect the fridge from the power source before opening up that main compartment.
What is the Refrigerator Start Relay?
The refrigerator start relay is the device that jump-starts your fridge’s compressor. The compressor is one of the most crucial components for keeping your refrigerator working effectively and can go bad for many reasons. The compressor compresses the refrigerant, which turns into a liquid, running through the condenser coils.
How to tell if fridge compressor is bad?
Disconnect the fridge from the power source before opening up that main compartment. You can then unplug the start relay from the compressor itself and then give it a hearty shake. If you hear rattling coming from the inside of the start relay, you can safely assume that the part is bad and you will need to replace it.
How to tell if a fridge is not cooling?
The first and most obvious sign that something is wrong is that the fridge isn’t cooling properly. If the compressor starts up and the fridge still doesn’t get to the optimal temperature, that should be the first indication that another component is at fault.
Why is my refrigerator not freezing?
And when the compressor doesn’t work properly, the interior of the fridge won’t get cold and the freezer will not freeze properly.
What happens when the refrigerator start relay fails?
The refrigerator start relay is one such device. When the start relay fails to activate, the compressor does not start. There are a few ways to identify a bad relay start and you can even bypass it in a pinch.
What does it mean when a compressor starts rattling?
If there is no rattling and no obvious damage to the start relay, that is indicative that there is an issue with the compressor itself.
How to check refrigerator PTC relay?
To test the PTC relay in your refrigerator, unplug the fridge and remove the lower back panel so you can access the relay, which will look like a small black box with 2 or 3 wires running into it. Carefully disconnect the wires with a pair of pliers, and then remove the relay by pulling it off of the prongs on the compressor. Then, use a multimeter to check the relay for open resistance. If the reading on the meter is above 1 ohm or remains unchanged, it may be time for a replacement. To find out how to replace your PTC relay, keep reading!
What is a positive temperature coefficence relay?
Community Answer. A positive temperature coefficeint relay, also known as a PTC or a start relay, starts the compressor inside of your fridge. The compressor is what creates the cold air that keeps your refrigerator cold. So, if your fridge stops making cold air, there could be a problem with the PTC relay.
Why does my refrigerator stop producing cold air?
The PTC relay starts the compressor inside the fridge to make cold air so your food stays cool.
Why is my refrigerator amp so high?
Either you have a bad connection somewhere in your wiring, including your plug for the refrigerator, or your compressor is internally dragging, causing a high amp load. In my experience, having a "newer" refrigerator does not necessarily mean your are immune to this. The fixes are new compressor or new fridge.
How to get power out of fridge?
Unplug your fridge. Pull your refrigerator away from the wall carefully so you can access the power cable. If you can’t move the fridge on your own, ask someone to help you pull it out. Once you can get behind your fridge, unplug it from the outlet so it doesn’t have any power running through it.
How to remove a refrigerator compressor?
Look for the compressor inside your fridge, which will be a large black cylinder on either side of the machine. Locate the area on the side of the compressor that has a black plastic box on the side with wires coming out from it. Grab the top of the plastic cover and carefully pull it off of the compressor to expose the relay inside.
What to do if your fridge is not working?
If your fridge hasn’t been working and you don’t know how long it’s been, throw away perishable foods since they may be at an unsafe temperature.
How to test compressor start relay?
Learn to test the start relay of the compressor: 1. Disconnect the refrigerator As you are going to work in the rear part, for your protection, the appliance should not be energized. This is a safety recommendation which must be followed when you are working with parts or equipment driven by electricity. 2.
How to tell if a refrigerator relay is damaged?
Learn to test the start relay of the compressor: 1. Disconnect the refrigerator As you are going ...
How to check if a relay is in continuity?
Step 1: With the relay in any position, check if there is continuity between terminals 1 and 2 of the relay. If there is not, change the relay. Step 2: With the relay in the vertical position, coil of the relay upwards, check if there is continuity between terminals 1 and 3 of the relay. If there is not, change the relay and repeat step 1.
How to check if a relay is in the vertical position?
Step 1: With the relay in the vertical position, coil downwards, check if there is continuity between terminals 10 and 11 of the relay. If there is not, change the relay. Step 2: With the relay in the vertical position, coil upwards, check if there is continuity between terminals 10 and 11 of the relay. If there is, change the relay and repeat step ...
