Question about Refrigerators
The defrost system is failing. This allows formation of ice on top of the evaporator coil. The condenser goes under stress and produces insufficient cooling. The problem will typically affect the fridge section more than the freezer compartment.
Parts in the defrost control assembly must be tested to find the fault. The defrost assembly is located behind the top compartment firewall, as illustrated in diagram.
Parts that can easily be tested are the heating element ( PS1150464 part 16 in diag ), and the defrost thermostat ( PS469510 part 21 in diag ). Both parts are tested removing them from circuit, and reading Ohms at their contact with a multimeter set on impedance, at Rx1.
If the components are working, they must read continuity. If a part reads infinite Ohms, then it must be replaced.
When problem is element or defrost thermostat, after doing a complete defrost by allowing ice to defrost at least for 24 hours, the unit will restart coling, at least for a couple of days before new ice formation on the coil start reducing the cooling power.
If the defrost control is also defective, defrost from panel may not be effective.
Try doing a complete defrost by disconnecting power cord or tripping circuit breaker, you will need to move the food in the freezer to a different appliance.
If you already did a complete defrost, and immediately after defrost the unit was still not cooling, then the gas pressure in evaporator coil (part 15 -
As first line of action I suggest doing a complete defrost, so to ensure that all ice had been removed.
After that call Frigidaire to check your warranty status, and eventually ask a quote on repair.
Here the diagram, click to enlarge:
Here parts and diagrams.
Note: parts and diagrams are for Frigidaire PLHT219SC , as requested. This is not a side-by-side, but a freezer on top. The procedure ifflustrated will be the same in case of a Frigidaire side-by-side. Component location and components part number will be different.
Posted on May 15, 2010
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Posted on Jan 02, 2017
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Hello Myles, thank you for your post!
Based off the information you have provided your Frigidaire refrigerator is not shutting off and it is making ice very slowly. If your refrigerator is too cold ice production will slow down. I would recommend turning your refrigerator up to the factory setting of 0 degrees inside the freezer and 37 degrees in the fresh food side. You may also have an issue with the thermostat and I would suggest performing a reset to help clear out any miscommunications within your refrigerator. In order to reset your refrigerator you would need to unplug the power cord for at least ten minutes. I hope this information is helpful. -Matt
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