[Admin / APP Team]

Checking various refrigerator components for continuity allows you to identify a failed component. For example, you can test your refrigerator defrost heater, defrost timer, defrost thermostat (at proper temperature only), fan motor, compressor relay, door switches, and other refrigerator parts.

The following article on our forum will explain in detail how to run a continuity test using either an analog meter or a digital meter - How To Check Continuity With Ohmmeter

[chrisbinparadise]

Originally Posted by Admin / APP Team

Checking various refrigerator components for continuity allows you to identify a failed component. For example, you can test your refrigerator defrost heater, defrost timer, defrost thermostat (at proper temperature only), fan motor, compressor relay, door switches, and other refrigerator parts.

The following article on our forum will explain in detail how to run a continuity test using either an analog meter or a digital meter - How To Check Continuity With Ohmmeter

Nice article. However, you do not even mention testing refrigerator parts in the actual article. Maybe you should stick in the intro paragraph to this thread into the actual article so it is a better and more searchable document for the future.

Keep up the good work!

[stabb357]

Type: Amana
Model ASD262RHRW
S/N 10271102EC

I dont here the compresor working, so there is no refrigeration at all.
Help please.

kind regards
Benji

[meerajoh]

I think so this will help to check your refrigerator. It is assumed that you have good familiarity with your machine and a "handy" guy or gal. This manual is the perfect companion for the appliance owner who is technically adept at the repairing arts but just needs to know a few "tricks" to point them in the right direction so they can fix their appliance.
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nickysam

[Bohdan59]

Defrost problem
How to check adaptive defrost with voltometr
How to check voltage from adaptive to defrost heater
if 110 v ?

[Gene]

Bohdan,

What is the complete model number of the refrigerator?

Can you post it in a new thread, please?

Gene.

[Bohdan59]

Maytag MZD2766GES
Adaptive defrost white wire 110V,to red,orange wire to red 110v,yelow wire to red 40v I changed new adaptive defrost but nothing change/defrost still not working/ ,I checked defrost heater resistance and it is 30 oms and thermostad is open when it is worm,and is continue it is frozen

[Gene]

You can find the complete troubleshooting instructions in the Service manual(page 2-15).

Here are the break down diagrams for the Maytag refrigerator Model MZD2766GES

Gene.

[robinson35]

I need help locating the defrost timer on my 6 year old Amana refrigerator, model #DRSE663BW. I am having problems with the freezer coils freezing up, causing the refrigerator's temperature to drop, becoming to warm. It almost appears as if there is not one. Any help you can give would be appreciated.

[Gene]

robinson35,

There is no defrost timer in your refrigerator. The defrost cycle operated by the Adaptive Defrost Control (#13 on the break down diagram) which is an electronic part.

Remove the rear panel in the freezer and check for continuity the defrost thermostat (#11 on the break down diagram) and the defrost heater (#14 on the break down diagram). The evaporator coil must be cold at time when you check the defrost thermostat.

Replace if any of them is open.

If there is nothing wrong then replace the adaptive defrost control.

- The part number for the defrost thermostat is AP4247331

- The part number for the defrost heater is AP84072

- The part number for the adaptive defrost control is AP177592

Here are the break down diagrams for the Amana refrigerator Model DRSE663BW

Gene.