Need to replace evap motor for a whirlpool freezer

This unit has several fan motors, it could be one of them. If so you may have to replace the motor

"Always disconnect power before trying to repair any appliance."

Recheck the model number on the fridge or try the Manufacturer web sites. A lot of fridges share the same parts, you should find a Kenmore model that is listed with the same part.

This noise is the fan motor going bad because a bearing is worn out. You need to replace the fan motor before the compressor goes out.

Hi and welcome to FixYa, I am Kelly.
There are 12 midelos that fall under the model number you passed. I will cite EV171NYMQ05 as a reference model number via this link:
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769

The freezer fan should be on anytime the compressor is on. If there is an ice block built up on the evaporator coils it can lock the fan blade in place via the ice build up. Additionally... if the fan motor bearings are dry or coated with sludge this too can prevent the fan motor from operating. The fan motor is item 3 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769&diagram_id=28174432#d28174432

Detail views:
http://www.appliancepartspros.com/Appliance-Parts/whirlpool-motor-evap-item-number-ap4539455.aspx

To check the can motor all that is required is a simple continuity check across the 2 connector wires. You should read under 480 ohms.

If you discover that the fan blades are encased in ice... do a manual defrost: (be ready to tend to a water mess)
1. By first unplugging the unit and then removing the freezer contents.
2. Direct an external fan into the freezer compartment for just over 2 hours.
3. Make sure the compartement drain funnel is clear of obstructions. Item 11 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769&diagram_id=28158051#d28158051

After the 2 hour manual defrost period plug in the unit and test to see if the fan motor is running.
If it is running you may have an automatic defrost problem causing the ice build up. On a freezer the ice build up will start again if there is an automatic defrost problem in 3 - 5 days. Until the automatic defrost problem is corrected you will end up doing the manual defrost routine described above everytime you have improper cooling problems.

Components that can cause the automatic defrosting problems are
1. The defrost timer item 7 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769&diagram_id=28257341#d28257341 Because it is not cycling or stuck in one position.
2. The defrost bi-metal thermostat item 9 above link (stuck closed)
3. The defrost heating element item 5 above link. (open)
And of course internal wiring....

Check the fan motor for continuity... if you attempt to lubricate it which is very difficult on this fan motor make sure you use paraffin based "Turbine oil" and not a regular household or automotive oil. Using any other oil will cause the fan to stop working in as little as 30 days.
Thanks for choosing FixYa,
Kelly

hi... is the evap fan motor running in the freezer ? if it is then check the the evap coils if it is completely frosted then u need to check the defrost timer .if that is good then check the defrost limiter that is on the evap coils and if that is good then u got a bad defrost heater. now if there is frost only on the bottom or top of evap coils u may have sealed sys problem if u got an ? feel free to write me..

if the evap fan is not turning try to turn it by hand a few times then start you freezer if it does not turn it needs to be replaced.make sure there is no ice build up on the evap coils.alos check the continuity of the defrost heater below the evap coils.once you het teh fan replace your unit should cool down to the proper temps.

Are you sure compressor is running? If it is make sure the evap fan is running. You should be able to hear the fan when you open the door. If ypou do not hear a fan running then fan has gone bad. 4390914 and approx cost is rediculous in my mind but it is approx. 150.00 to 160.00 . Crazy for a fan motor.

check to see if the evap fan is blowing behing the freezer wall. if not it may need to be replaced. is there ice forming on the wall of the freezer? If so you might have a defrost problem.

Normally, freezers have electric heaters that are energized during the defrost cycle. Once out of the defrost cycle, the refrigeration system comes on but the fans do not. This allows the evap to cool off and to prevent circulating warm air from the heaters. This is controlled by a fan delay switch. It is a small, round device that can have 2, 3, or 4 wires going to it, depending on the manufacturer. It is usually clipped on to the end of the evap coil on one of the "U" bends, near the top, inside one of the ends of the evap. Usually where all the electrial components are located. It come in several variations, but it's main function is to prevent the fans from energizing too early. Usually does not bring fans on till evap hits 20 or so degrees. Check this out and get back to me.

if it seems like the evaporator is getting cold then your sealed system should appear to be ok. you need the evap fan to transfer cold air into fresh food section. if not turning u need to replace fan motor. make sure your not getting to much frost build up on the evap.