Can't find the defrost timer to test my fridge CAMCO side by side
yes the ice buildup is coz of a problem in the defrost cycle... and u wud be required to test all the three components.....
first we ll see how u need to check the defrost timer....
Before testing the defrost timer, unplug the freezer
to avoid an electrical shock hazard.
A mechanical defrost timer controls the defrost
cycle of the appliance. In older models, the timer runs continuously
and roughly every six hours, shuts off power to the cooling
system and sends power to the defrost heater. In newer models
the timer advances only when the compressor or defrost cycle
is running - an improvement for efficiency. As the timer advances,
power to the heating element shuts off and power is restored
to the cooling system. If the timer does not advance, the appliance
will be stuck either in defrost or refrigerate mode, resulting
in, respectively, no cooling or frost
timer is usually found behind the front grill of the freezer. It may
also be found behind a cover plate inside the freezer, in the
temperature control console, or behind the freezer near the compressor.
To test whether the defrost timer is simply
failing to advance, locate the advance screw and turn it clockwise
until you hear it click. This advances it to the next mode.
If it was cooling before, it is now in defrost mode. Simply
wait about 35 minutes and check whether it has left defrost
mode and has resumed cooling (listen for the compressor). If
it does not advance, the timer motor is probably bad and the
entire timer needs to be replaced. If
it advances as it should, then you can follow the steps below
to test the switch electrically.
The timer is usually held in place with one
or more screws. Remove the screws and gently pull the timer
out far enough to disconnect the wiring connector. The connector can be removed by firmly pulling
and rocking it left and right. It is not necessary to note the
position of the wires because the connector plug is keyed so that
it can be replaced in only one way.
Test the timer for continuity using a multitester.
Set the multitester to the ohms setting X1. The timer has four
terminals. Locate the common terminal, it should be labeled "3" or "C".
If the terminals are not labeled, determine which terminal coincides
with the common wire in the connector plug; it is usually the white
Once you have
located the common terminal, touch one probe to it. Touch the other
probe to each of the three remaining terminals. The multitester should
display a reading of zero or near to zero ohms (which indicates
continuity) for one pair of the terminals and possibly two pairs. The
third pair of terminals should show no continuity (infinity).
the timer switch and turn it clockwise until you hear it click. Now
retest the timer as you did above. One pair of terminals should
indicate continuity (possibly two pairs). At least one pair should give
a reading of infinity. Note however, one of the pairs that showed
continuity in the first test should now read infinity and one pair that
read infinity should now show continuity. If the defrost timer does not
pass these tests, it is likely that it should be replaced.
* We have received two reports of cases in which
only one pair of terminals shows continuity and when the timer
is advanced, the same pair still shows continuity. For these
isolated cases, this was reported to be the correct operation
of the timer. At this time we have not been able verify this
case. This may indicate a specific model or models that use
a different wiring configuration than discussed in this article.
Also, note that this article applies to mechanical defrost
timer controls and not electronic or adaptive defrost controls.
on Aug 30, 2010
Freezer thermostat was set at 0 degrees unit went
I would start there. If the thermostat has an off setting, turn it there and see if it goes off. If not, try turning it to it's warmest setting while the box is cold to see if it turns off. To test to see if the relay/ contactor is stuck/bad, kill power to the unit (Unplug or turn off breaker). Disconnect one wire to the thermostat. Restore power. If unit runs, bad relay/contactor. If unit does not run, I'd replace the thermostat. Make sure the sensing bulb of the thermostat is in the conditioned space of the box or in the return air (intake) side of the evap so it can sense the box temp.
on Aug 21, 2010
My coolers compressor has a
start with checking the freon level. If too low, the txv will open and try to feed the evap. this can cause some overfeeding and give you some frost in some cases. It could also be a txv not feeding correctly. usually and overfeeding condition. causes frost build up on line and compressor and pressure in evap too high to remove the heat needed to properly cool. If a cap tube system, usually a sign of over charged or a real dirty condenser. In both cases, an evap fan, not properly working will cause a freeze up of the evap causing a high box temp and frost build up on the line and compressor.
on Aug 21, 2010
Norlake freezer 6x6 not freezing enough
Normally freezers are kept at zero. Most health departments will not allow the temp to be higher than plus 10. If you want to store ice cream, you need to be at minus 10 degrees to minus 15 degrees.
let me know if I can be of any further help.
on Jul 19, 2010
My Ammana Freezer is not defrosting. I need to
in most cases its the defrost element as the other units last much longer unless the fan has become jammed this happens when people toss meat hard against the back wall if you know how to do polaity test using a multimeter do test on defrost element its not a thermistate as new age frezzers dont use them they use timers and plastic channels to curculate cool air
good luck need more addvice email me
on Jun 25, 2010
Freezer won't shut off
The symptoms do indicate a failed thermostat.
I am not sure where you could get a thermostat for this freezer but I would try contacting Norlake first. They may guide you to who has one or maybe they can sell you one. If it is a direct replacement it is something that you can do yourself.http://www.norlake.com/
on May 10, 2010
Eating frost in the freezer
It is probably no more risky than drinking water from a clear running stream. The frost is formed from water vapour so as it is formes it is pure. I suppose it then depends on how old it is and what has come into contact with it. It should be ok though.
on Apr 28, 2010
I have a GE Refrigerator 25 CUFT SS Side/Side
you need to remove the rear access panel inside the freezer and find the defrost heater and check this and see if the element is open,it is under and the side s of the evaporator,and if this is good you need to see if the defrost timer or adaptive defrost board is bad
on Apr 16, 2010
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