We have a Maytag Fridge model: MTB1956GE and the top freezer is not keeping food frozen, however the bottom fridge is working fine. In addition small pools of water have been cleaned up from under the fridge off the floor. Also is appears that the fan continues to run inside the freezer section. Is the defrost timer possibly the problem?

SOURCE: i have a maytag side

called a repair man. thanks anyway

SOURCE: Maytag PBF 2255 HEW refrigerator defrost timer location?

These look like schematics that might help you.
http://www.partselect.com/AdvancedModelSearch.aspx?ModelNum=PBF2255HEW&mfgModelNum=&fkMfgID=1

SOURCE: maytag fridge defrost timer location

its not a timer , but an adaptive defrost control board, in the upper rigth hand side of refrig compartment, atop the control housing heres the part number 61005988.

check this site ==> http://www.fixya.com/support/t1330051-defrost_timer

Good luck,
Tony Ip

SOURCE: Frigidaire plht189sska top freezer fridge problem.

If the defrost heating element, defrost timer or evaporater fan weren't working, you'd develop a block of ice on the evaporator. Is the compressor running? If it is, it might have bad valves from the frost buildup scenario. Liquid refrigerant could have gotten to the suction valves. The sealed system should have a five year warranty. Might be time to call a pro

Testimonial: "Thanks for your help. Just looking for direction and trying to troubleshoot ...very frustrating. Thanks again Em"

SOURCE: water on the inside floor of the refridgerator,

remove back panel from freezer and unglog hole where it collects water. its glogged