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I unpluged the fridge and left the freezer door open due to ice build up in the coils. The evaporator fan is not running at all even after defrosting the unit. Cleaned underneath fridge for dust and debris. Condenser fan is working fine. After defrosting the system, items in the freezer section is getting back to normal, but took some time to freeze. Now I don't know whether it is the evaporator fan or the defrosting system. Please assist.
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Here are your parts Model FRT18HS6DWCYou may have 2 problems. 1. FAN Measure across the motor for voltage. If you have 120 volts AC and the motor does not turn it is shot OR Unplug the unit and the motor. Measure across the motor for resistance, if it is an open (infinite resistance) the motor is shot. 2. DEFROST Your defrost timer is mounted under the cover at the top of the fresh food section (Item 23 in the "Shelves" section). Actual part in the list is at the bottom of the list (F23). There should be a hole in the cover which will allow you to rotate the timer cam with a screw driver. It only rotates in one direction so do not force it. Rotate the cam till the compressor fan goes off. You should now be in defrost mode. Does the defrost heater get hot? Be careful do not burn your fingers. Note the defrost thermostat must be frozen, it opens and will shut off the heater just above 32 degrees. If it does heat up you know that the heater and the thermostat are OK. Let it run in defrost mode. It should finish the defrost cycle in half an hour or so. If not odds are high the timer is shot, cam not rotating. This does not rule out the timer totally could be the the contacts in the timer are not closing or it is jamming up somewhere else in it's rotation. |
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I remember in the early seventies, Mars sold a kit. Heater, defrost thermostat, timer. Boss use to say if one failed, others not far behind. :)
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I turned the defrost timer with a flat head screwdriver and it cut off and came back on after about 25 mins. Heater was warm to touch, ice indeed defrosted. Not sure on how to do the attack your first reply about the voltage. But, the fan did turn with my finger without any force. I was hoping that after it defrosted the fan would come back on but, no luck. So, does this mean that it may just be the evaporator fan? Or, if the fan was bad, would that make the defrost timer not work also?
Maybe I need both parts? Please assist
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Rank: Advanced Member
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Not sure on how to do the attack your first reply about the voltage.
You will need a multimeter to do either check.
Could try just replacing the fan if you do not have a meter
does this mean that it may just be the evaporator fan?
Yes
Or, if the fan was bad, would that make the defrost timer not work also?
No
Maybe I need both parts?
I would replace the fan first and see how it goes
I would suggest you purchase a meter. You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.
There is a good STICKY at the start of this forum about it's use. |
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Question : Does this mean the evaporator fan is bad ?
Answer : Did you let the unit run long enough for the defrost limit to close, around 25*F coil temperature. The defrost limit acts also as a fan delay, and until it closes the fan will not run.
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Hey Denman, finally got the evaporator fan, yesterday, hooked it up and heard the greatest sound in about 3 weeks. The sound of a fan and cold air going into my refrigerator compartment. I just wanted to say thankyou and Icehouse for your reply with my fridge. I was wondering will your website eventually have a way to input several address that one may want a part to be shipped to? Glad to see you feeling better. Lon told me you were out sick last week.
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Rank: Advanced Member
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Glad it is fixed
You're welcome, always nice to get a thank you
As to multiple addresses I have no idea I just volunteer here. |
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Originally Posted by: denman  Glad it is fixed
You're welcome, always nice to get a thank you
As to multiple addresses I have no idea I just volunteer here. What he said. :)
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