I have a turbo line freezer that really ices up. How do I defrost

it is not defrosting. timer ,element , limit switch maybe issue. find defrost timer advance it see if compressor and fan quit running. when you advance this it should start defrost mode, which turns on the heater, which stays on till limit switch opens or timer advances, most are on 12 hour cycles

If you need further help, I’m available over the phone at https://www.6ya.com/expert/rick_4ed9a6c8e57209e6

1, ice maker may need to be replace, 2 water line may be frozen , if so turn off the freezer to defrost it for few hours, 3. when was the last time to replace the water filter? make sure you replace it when the time expired.

Defrost element has had it or timer will not shut unit off, check both, if both ok, check thermo fuse.
Need any more help, email me at [email protected] or call me 08 9523 0552 West Australia.
DONT FORGET TO VOTE, I JUST SUPPLIED MY TIME FOR FREE. Hope you get it sorted. Regards Russ

here you go: http://www.turboairinc.com/TB-Service/Service%20Manual%20%20-%20April%202008/MSF-23NM.MSF-49NM.MSR-23NM.MSR-49NM.MSR-23G-1.MSR-49G-2.pdf
takes alillte to load so be patient
hope this was helpful

in 601 model. really common problem is the drain hater. watch close the ice maker for a BIG long ice. on the cotton psrt of the back wall. some models have 1 some 2 depends in the serial num. ask you tech for replace the DRAIN TUBE HEATER. that way your cover. really helps a lot the code number...................good luck................. leave a comment...........thanks

If this freezer has a fan under it, make sure it's running. It blows on the condenser coil to remove the heat from the system. It seems your heat has no where to to.
If it is auto defrost, make sure the evaporator coils are not iced up. They are usually behind the rear cover inside the freezer. If it's heavily ice up this would indicate a defrost system failure.

hi i have same problem one of my lodgers left the door open and it froze thick with ice i defrosted it and let it dry for 3 days and was fine for a couple of days then it defrosted so i switched it of for 24 hours it worked fine for a day before it defrosted again could you email me with any help thanks [email protected] matt

I deal with MasterBilt which is a private lable made by TurboAir.
I have several units but only one does this icing up thing. Look for a bad seal on the door gasket. These really ice up if that does not seal almost perfectly. Look for premature termination of the defrost cycle. Check that the heater is pulling amps. The wiring diagram at "turboairinc.com" is very poor but it shows 2 heaters for the refrigerator. They list a diagram for the freezer but it's not there. I know for sure that there is a heater for the evap but don't know about the drain. I've seen some have it and some don't. there tech support line has much to be desired but it's worth a shot. Also, the bottom hinge on the door fails fairly regularly. This allows the door to drop just enought to disengage the switch at the top of the door and stop the evap fan from running, thus causing a freeze up.
Good Luck . You got your hands full with this one.

Check the time setting on the defrost timer. It may not be set to the correct number of minutes for defrost. Compare it with the side that is working properly for the right time of the cycle.

Service:
http://mrappliance2.reachlocal.net/land/
http://www.sears.com/sr/service_order/so_productinfo.jsp
DIY repear and diagnosic help:
http://www.acmehowto.com/howto/appliance/freezer/freezer.php
http://www.repairclinic.com/0047_3.asp
http://www.fridgedoctor.com/