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I have the usual fault with an American Fridge RS20CCMS where I have removed the top and bottom back panels on the freezer side and discovered that the heat exchanger is all frosted up. Having spent hours on the internet the advice from the various forums seems to be to check the defrost sensor; but where is it ? (I assume that it’s not the sensor behind the little red blister cover on the top panel).
Thanks
Dennis
Re: SAMSUNG RS20CCMS problem
Hi
On right of the fridge are connectors,top thermal fuse ,middle defrost/drain heater,botton defrost sensor connected onto suction pipe.
or give Samsung a call and state watchdog complaint.you may get somewhere but cant promise.
Bryan
Re: SAMSUNG RS20CCMS problem
r600a wrote:Hi
On right of the fridge are connectors,top thermal fuse ,middle defrost/drain heater,botton defrost sensor connected onto suction pipe.
or give Samsung a call and state watchdog complaint.you may get somewhere but cant promise.
Bryan
When you say the “right of the fridge” do you mean in the refrigerator section behind the panel? I haven’t been in there yet. (and remember it’s an RS20)
Thanks DennisRe: SAMSUNG RS20CCMS problem
unplug machine 1st. there is no evaporator in the fridge in this machine all freezing is done in freezer and air blown into fridge, you will need to test thermal fuse,heater and defrost sensor with a multimeter like r600a said.
Re: SAMSUNG RS20CCMS problem
smartin wrote:unplug machine 1st. there is no evaporator in the fridge in this machine all freezing is done in freezer and air blown into fridge, you will need to test thermal fuse,heater and defrost sensor with a multimeter like r600a said.
I am capable of testing with a multimeter, I just need someone to tell me where the thermal fuse and defrost sensors actually are! I have taken the panels off in the freezer side and have exposed the cooling matrix and heater and I can see the fan unit at the top but no sign of any thermal fuses or sensors apart from the ones behind the red blister things. Should I take the fridge side apart to find these?
Cheers
Re: SAMSUNG RS20CCMS problem
if you trace the wires from the element up all the connectors for the sensor,heater and thermal fuse are there, yellow wires are the defrost sensor, red and black are heater and thermal fuse, thermal fuse is tucked behind evaporator.
Re: SAMSUNG RS20CCMS problem
smartin wrote:if you trace the wires from the element up all the connectors for the sensor,heater and thermal fuse are there, yellow wires are the defrost sensor, red and black are heater and thermal fuse, thermal fuse is tucked behind evaporator.
OK done all of that and the results are
Heater 430 ohms
defrost sensor 7.45K ohms
thermal fuse 6 ohmsthe other (middle) plug with red and black wires which go to the cylinder thing on top of the evaporator have a resistance of 213 ohms.
Do any of these look wildly out of spec?
Cheers Dennis
Re: SAMSUNG RS20CCMS problem
Hi
Main defrost heater = 480 ohms
Drain Heater = 2k Ohms
Defrost Sensor = 13.3kOhms @ 0 deg Centigrade
Thermal Fuse = 0 ohmsHTH
Greg
NB – These are approximate values
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