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Side-by-side Frigidaire...PLHT219SCB9....fridge not nearly cold enough; ice maker not making ice but freezer is keeping things rock solid; when i press on the inside back panel of the freezer (because i saw frost building up slightly on it) i feel what seems to be ice breaking behind the panel. took all food out of the unit and let it defrost completely...repowered and still not solved. help would be appreciated! BTW, when i checked, the coils looked like a polar bear there was so much dust and hair on them...cleaned them completely last night...still no better...HELP! Thanks!

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  • briankwilkie May 15, 2010

    Thanks for the info...excellent detail. BTW, you are correct - not sure why I wrote side-by-side, it is freezer on top.



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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 (Side-by-side Frigidaire...PLHT219SCB9....fridge no - _.gif 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 - PS726193 ) must be tested. This test is done piercing the coil and using a gauge in lines, then welding the coil. The test must be done by a technician.

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

  • Ginko
    Ginko May 15, 2010


    You are wellcome.

    Thanks for the feedback.




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