Question about Magic Chef CTB1821AR Top Freezer Refrigerator

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Run capacitor how can i tell if the run capacitor is good

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Re: run capacitor

If the motor starts and runs the capacitor should be OK.
Disconnect power, discharge the capacitor (if there is a spark noticed when discharging it it may be OK)
Inspect the relief port to see if it has relieved pressure (some capacitors).
Isolate the capacitor from the circuit and check it with a capacitor tester. It should match the capacitance rating on the capacitor (MFD). Or if you do not have one measure the resistance with a VOM first one way, then reverse the leads and measure the resistance the other way. If the meter goes high and then low that capacitor may be OK. A failed capacitor may show an open circuit or a short circuit, but one that has some capacitance left will kick the meter. without the capacitor tester you may not know if the capacitance is still as rated. It is not that expensive and if there are no other problems replace the capacitor

Posted on Mar 19, 2009

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Re: run capacitor

Try this guide :)

Posted on Jan 15, 2008

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1 Answer

Freezer chest not cooling but Compressor is running

Unless you have a microfarad capacitor meter, you won't be able to check the capacitor. Make sure the evaporator fan motor is running. You may be low on refrigerant.

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Is my wiring correct on a whirpool direct drive washer?

Hi joe,

Those wires are and need to mount on a capacitor that should be mounted to the side of the washer motor. This capacitor is a start capacitor for the motor, without it this will not run or start. Now plug those wire into the capacitor and if its a good capacitor it will run. Good Luck

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Tssu-36-12m-b unit no cooling

Generally when the overload starts tripping the compressor is telling you it has failed. There is a relay that plugs into the compressor electrical connections and a start capacitor that is attached to that relay. Its a relatively low cost adventure to replace those 2 components maybe 30 bucks at the supply house. Otherwise if the condenser is clean and the condenser fan is running and the component replacement doesn't help you're going to need to buy a new compressor. Hope this helps and good luck.

Apr 30, 2014 | True Refrigerators

1 Answer

My Gladiator freezerator GAFZ21XXRK has a Embraco EGZ90HLP will not cool down but fans run and compressor is warm humms and vibrates

You can test the electrical winding but not the mechanical possibility that compressor is worn out. There is a 3 n 1 that you can use that uses a run capacitor here=>SUPCO RC0810 Refrigerator Compressor Hard Start Kit
How to test windings
Unplug the refrigerator and remove the back panel that covers the compressor. There should be 3 wires going inside the cover of the compressor. Mark all 3 and mark their location so if compressor is OK you can put them back in same order. The plastic cover may snap on and you may need to squeeze the sides to unlock the cover and sometimes there is a metal clip holding the cover in place. Remove the cover. May look hard but it's simple. There will be three connections under the cover and 2 will go through the start relay. Unplug them leaving the three prongs exposed. They may be marked R =Run, S=Start and C=Common. Set your meter on continuity and then begin by testing 2 at a time until you have checked S to R and R to C an C to S and S to R again. You should get a reading all the way around. If no reading between any of the pairs as you go around you should get no reading between any two the compressor has an open winding and is defective. Then if it passes that test then touch one probe to R and the other to the copper pipes or clean metal on outside of compressor, then S to metal outside and C to metal outside. If you get a reading this way even just a little. The compressor is a burnout. Then let me know what you find. Thanks, Sea Breeze

Apr 02, 2013 | Whirlpool Refrigerators

2 Answers

Plug in frig starts cooling will make a thin layer of ice in trays and frig fresh food will start to cool down then cooling stops and fan is still running. Unplug wait 30 min plug back in and starts...

That problem may take a little work finding but that is no problem if you can pull away from the wall and unplug. Then remove the lower cover that covers the compressor area so you can feel the top of the compressor. Feeling the top of the compressor tells me several things like if it has been running all this time or if very hot it will tell me that the compressor has been short cycling. Compressors short cycle for a few reasons and one is the start components photo #8 and #4 in this photo here=> ASD2628HES_COMPRESSOR_Components Another reason may be the evaporator fan or the condenser fan #20 in the photo link above are not staying on or there is an airflow restriction. When the compressor runs there should be a good steady flow of warm air from below the refrigerator. That warm air is the warm conditions being removed from inside your refrigerator. The most likely reason for this is the start relay/overload or number 4 in the photo has become defective. That is this=> Relay Overload with Start Capacitor


With that part out and able to get the=> 65889-4 15uf run_capacitor
out I would carry the run capacitor to a local refrigeration dealer and ask if they would test your run capacitor for free. I will be here if you should have questions beyound what I have mentioned here today, Thanks, Sea Breeze


Jun 13, 2011 | Amana 26 cu. ft. Side-By-Side...

1 Answer

Every thing runs but the compressor wont fire i think its the compressor start up capacitor how do i test the capacitor

first discharge the capacitor for safetys sake,then touch the meter leads of a multi-meter set to RX100 to the caps leads if the needle stays on 0 the cap is shorted(but that would trip the wall breaker),if it doesnt move at all its open,if it goes to 0 and slowly climbs back towards infinity its good,i believe you will find the ptc overload relay on the compressor is defective,its in combination with the capacitor,the cap is only on there to take the power spikes off the relay contacts during start-up,the ptc overload relay is what aids in compressor start-up/run/and overload protection if compressor wont fire,change them both and it will run

Mar 22, 2011 | Hotpoint HSS25IFMCC / HSS25IFMWW Side by...

1 Answer

Free Refer Hotpoint csx27dma. Owner had two new parts for the compressor. a start switch and an overload switch. The compressor has 3 round connection prongs for these parts to fit on to. Installed...

From cabinet you have three wires. 2 Orange,and 1, Black
1 Orange goes to on side of run capacitor the other Orange goes to the (2) R on the relay. The Black goes to the overload (round black disk). 1 White wire connector on end goes to run capacitor the other end connects to the (1) S on the relay.
The run capacitor is a small black cube like device with two prongs.

Oct 26, 2010 | Hotpoint HSS25IFMCC / HSS25IFMWW Side by...

1 Answer

Should the wires coming from the run compacitor have power

The run capacitor is not a mechanical device, so the clicking that you are hearing is not actually coming from the capacitor. If you the wires going to the capacitor, (isolate the capacitor), you can check the microfarad rating of the capacitor to ensure it is still good using a multimeter. Hope this helps.

Apr 15, 2010 | Refrigerators

1 Answer

Have a true reach in freezer model #T-72f missing start and run capacitor and relay need specs no service man.

call factory tell them what you have model ask for part numbers on capacitors. its only gonna be start cap

Aug 26, 2009 | Refrigerators

1 Answer

Fridge or freezer are not cold

I had similar problem: condenser fan was running, but compressor was not. After I unplugged refrigerator for a while and plugged back on, the compressor ran for a few seconds. Compressor testing indicated it was OK, I suspected that it was either overload/relay or run capacitor. My limited testing equipment could not tell me which one was bad. I took out the run capacitor out of system by unplugging the 2 wires and the refrigerator ran fine. After Replacing the run capacitor with a new one bought from, it ran fine so far.

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