Freezer at aprox 18 deg, fridge at 60 deg- is the evap possibly not defrosting properly? how do I get to the evap and defrost heater?
SOURCE: evaporator fan blade jams in ice buildup
check the defrost bimatal or defrost thermanstat it will be located on the evaperator suction line (large line) it should read continuity with the ref cold if it showes continuity then the defrost timer is the problem
SOURCE: GE built in Fridge does not defrost and freezer ices up
Defrosters are commonly controlled by a primitive timer and this may have a 'dry' and a 'wet' (humid) climate setting that will cause the defroster to cycle generally every 12 or 24 hours.
If set wrong (by accident or on purpose), it can allow too much frost to accumulate before attempting to defrost.
This can cause a gradual buildup of ice.
Also the heating element for the freezer may have failed open so it never heats at all. The connections that need to be checked are often buried between the in- and outside walls.
The timer is probably still OK since you apparently aren't having a problem on the refrigerator side.
SOURCE: Troubleshooting defrost system failure on Amana Fridge
YES YOU GOT IT,IT'S THE BOARD BECAUSE EVERYTHING ELSE CHECKED OUT GOOD,BOTH FANS,HEATING ELEMENT,DEFROST THERMOSTAT,THE ONLY OTHER THING I WOULD DO IS TURN THE THERMOSTAT OFF IN THE FRIG.TO SEE IF THE COMPRESSOR AND FANS TURN OFF,WAIT 3 MINUTES AND TURN IT BACK ON, IF THAT CHECKS OUT THEN IT HAS TO BE THE DEFROST TIMER,LET ME KNOW-MIKE
SOURCE: Defrost Heater Resistance Range
21.3 ohms is just fine for a defrost heater. this heater is low wattage since it is an adaptive defrost. you could have problem with temperature sensor since you have replaced the board already.
tnx for using fixya,
drcool
SOURCE: Amana XRSS287BB side by side fridge freezer (3 years old)
you may try hard restart by shuting the fridge off and unplugging it from the wall . plug in back in and after 5 min turn it back on . close both doors and wait one hour . check the temp. if the unit still will not respond calll the local woranty amana repairman only. hope this helps you
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