matag window air conditioner #m7x06f2d-a - Heating, Ventilation, and Air Conditioning (HVAC) - Do-It-Yourself Appliance Repair Help - ApplianceGuru.com: The Samurai Appliance Repair Forums

ApplianceGuru.com: The Samurai Appliance Repair Forums Home

ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > Heating, Ventilation, and Air Conditioning (HVAC) > matag window air conditioner #m7x06f2d-a

Find Appliance Parts & Diagrams Here

Enter a model number, part number, type of appliance, brand, or even a part description.

365-day return policy on all parts ordered through this site!

Moderated by: RegUS_PatOff, dkpd1581, applianceman18007260692

Search Our Sites for More Info!

New Topic

Printer Friendly

matag window air conditioner #m7x06f2d-a

Rate Topic

Author	Post

Posted: Thu Apr 29th, 2010 05:53 pm

Quote

1^st Post

mrfixit2
Senior Apprentice Appliantologist

Joined:	Thu Nov 22nd, 2007
Location:
Posts:	105
Flavorite Brew:	tim hortons coffee
Status:	Offline

hi. unit fan motor just hums. can turn fan blade by hand no problem. also the switch on the control board is open , i turned the stat down to 66 and waited, switch stayed open.when i jumped the line wire to the overload wire on the switch the compressor started and ran fine. it has a 3 terminal cap , but i'm not sure how to test it. i know how to test a 2 terminal one.the switch i refered to above is the compressor switch. any ideas. thanks.

Quote

Posted: Thu Apr 29th, 2010 06:16 pm

Quote

2^nd Post

kdog
Fellow, Academy of Sublime Masters of Appliantology

Joined:	Sun May 8th, 2005
Location:	Calgary, Alberta Canada
Posts:	2560
Flavorite Brew:	dickens cider
Status:	Offline

The 3 terminal cap is merely 2 capacitors in one can (one for compressor and one for fan) - read the terminals and they will be identified on as fan,one as compressor and one as common, bad cap could be causing your fan not to run

Also, the unit may not start if temp/rel.humidity is not high enough but usually you can trick it by warming the anticipator bulb by squeezing it in your hand. The bulb will be either a small capillary or a thermister clipped to the face of the evaporator coils

Last edited on Thu Apr 29th, 2010 06:56 pm by kdog

____________________
Can Ye spare some 'cutter me brutha ?

http://web.me.com/zenzoidman/kdog/

Quote

Posted: Thu Apr 29th, 2010 10:27 pm

Quote

3^rd Post

mrfixit2
Senior Apprentice Appliantologist

Joined:	Thu Nov 22nd, 2007
Location:
Posts:	105
Flavorite Brew:	tim hortons coffee
Status:	Offline

thanks kdog for the quick reply.yes after i put it back togeather i thought i shuld have heated up that bulb to see if the comp would work, i tried it your way using my hand and the comp. started up fine. i took the leads off the cap and ohmed common to compressor terminal , needle swung all the way to the left of the scale then back, reversed leads , same thing. probed from common to fan and needle swung half way across the scale, reversed leads and again half way across scale and back. seems like cap is ok. do you think this is an acurate test? i think the motor start windings are shot , what say you.

Quote

Posted: Thu Apr 29th, 2010 10:32 pm

Quote

4^th Post

kdog
Fellow, Academy of Sublime Masters of Appliantology

Joined:	Sun May 8th, 2005
Location:	Calgary, Alberta Canada
Posts:	2560
Flavorite Brew:	dickens cider
Status:	Offline

Give the blade a spin wth your hand (carefully of course) while energized and see what happens. the only sure way is to "sub a known good capacitor" - although I recall Cactus Bob once enlightening us with some pearls of wisdom in this matter, it behooves me to locate it.

I would tend to think that if the motor continues to run when helped to start, that would indicate a capaictor issue

Last edited on Thu Apr 29th, 2010 10:34 pm by kdog

____________________
Can Ye spare some 'cutter me brutha ?

http://web.me.com/zenzoidman/kdog/

Quote

Posted: Thu Apr 29th, 2010 11:03 pm

Quote

5^th Post

mrfixit2
Senior Apprentice Appliantologist

Joined:	Thu Nov 22nd, 2007
Location:
Posts:	105
Flavorite Brew:	tim hortons coffee
Status:	Offline

thanks kdog. yes i've spun the fan many times and it doesn't go ,thats while powered up.

Quote

Posted: Thu Apr 29th, 2010 11:15 pm

Quote

6^th Post

appl.tech.29501
Fellow, Academy of Sublime Masters of Appliantology

Joined:	Sun Oct 7th, 2007
Location:	South Carolina USA
Posts:	6784
Flavorite Brew:	waffle house coffee
Status:	Offline

Cap. Seems ok by your test...most likely the fan is bad...if you have the schematic you can ohm the windings...is it a varible spped fan?

____________________
If you would like to make a donation you may do so at the link below

http://homepage.mac.com/zenzoidman/appl.tech.29501/

Quote

Posted: Thu Apr 29th, 2010 11:21 pm

Quote

7^th Post

misterfixer
Merit Apprentice Appliantologist

Joined:	Sat Jan 2nd, 2010
Location:
Posts:	5
Flavorite Brew:	Dark roasted coffee
Status:	Offline

I agree that the capacitor seems OK using a multimeter test in this manner, but without substituting a known good one of the correct value, it may never start. If the value of the capacitor has fallen too low, the motor will not start. Does it hum when trying to start?

Quote

Posted: Fri Apr 30th, 2010 01:03 am

Quote

8^th Post

mrfixit2
Senior Apprentice Appliantologist

Joined:	Thu Nov 22nd, 2007
Location:
Posts:	105
Flavorite Brew:	tim hortons coffee
Status:	Offline

the motor hums the instant i push start and continues to hum. i ohmed the low speed winding from common to low speed wire got 78 ohms. then from common to high speed winding got about 160 ohms. but theirs no where on the schamatic that shows what the resistance should be. the lady i'm fixing it for has an identical a.c. i might just switch caps to see what happens. the other unit works fine. thanks guys.

.

Quote

Posted: Fri Apr 30th, 2010 02:08 am

Quote

9^th Post

misterfixer
Merit Apprentice Appliantologist

Joined:	Sat Jan 2nd, 2010
Location:
Posts:	5
Flavorite Brew:	Dark roasted coffee
Status:	Offline

Let us know what you discover!

Quote

Posted: Fri Apr 30th, 2010 10:54 am

Quote

10^th Post

mrfixit2
Senior Apprentice Appliantologist

Joined:	Thu Nov 22nd, 2007
Location:
Posts:	105
Flavorite Brew:	tim hortons coffee
Status:	Offline

will do,thanks again.

Quote

Posted: Mon May 3rd, 2010 01:54 am

Quote

11^th Post

mrfixit2
Senior Apprentice Appliantologist

Joined:	Thu Nov 22nd, 2007
Location:
Posts:	105
Flavorite Brew:	tim hortons coffee
Status:	Offline

hi guys and gals. i put a good cap in it today and she still no go. the motor is bad. thanks for your help. take care.

Quote

Current time is 12:42 pm
ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > Heating, Ventilation, and Air Conditioning (HVAC) > matag window air conditioner #m7x06f2d-a	Top

Find Appliance Parts & Diagrams Here

Enter a model number, part number, type of appliance, brand, or even a part description.

365-day return policy on all parts ordered through this site!

Your Sometimes-Lucid Host:

"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly, spilling my steaming entrails onto your floor."