SOURCE: We have an imperial upright ''commercial grade''
just to be sure that your door is sealing properly, put a flashlight into the freezer and turn off all of the lights in the
room to see if there are any openings in the seal. Iam suggesting you this coz sometimes a small opening may pass our eyes easily....
if the door is sealing properly......
If this is the type of freezer where the shelves are the evaporator
coils, the coolant goes through the shelves(tubing) and the formation
of frost is normal and has to be manually defrosted.All the shelves
should be as cold asd the top one. The fact that just one has any frost
may indicate that it is low on freon. If this is the case you should
notice that the freezer doesn't get cold enought just like you said... so check your freon levels.
This could also be because of the thermostat not sensing when the fridge
reaches its set temperature and as a result of this the compressor will
keep on running and build-up of ice will occur.
Follow the advices in the order prescribed above and you should be set
SOURCE: We have an upright Commercial Grade heavy duty
the suction noise is not something that will happen all the time.
check the current draw on the compressor and make sure it is in between 1.2 and 1.6 amps.also look at you evaporator coils and make sure there is no excessive frost build up.If there is ice build up then you need to defrost it check the heating element and defrost timer and make sure they are in proper working order.also check the evaporator fan and make sure it is working when the unit is in a cooling mode.
SOURCE: Imperial commercial upright. Top shelf
Hi,
Fan problem is one of the most common reasons for the freezer to start
failing, this is called "frost free failure." Ice can build up on the
evaporator coils over time, and this ice builds up until it starts
blocking the fan. The fan is responsible for circulating cold air
throughout the freezer, so if it is blocked the freezer will not be able
to freeze any food. You can usually check this by removing an access
panel in the back of the freezer to inspect the coils. If ice is built
up on the coils, a hairdryer can assist in defrosting them.
It's also possible that the fan is not running at all. If the fan is
burned out or the motor isn't running, cold air can't circulate through
the freezer and everything will melt. You can normally hear the fan
motor switch on and off from time to time. Listen for it and if you
can't hear it coming on for an extended period of time, the motor may
need repair or replacement. The wires connecting to the fan may be the
problem, preventing the fan from receiving electricity.
Several other problems could be keeping your freezer from freezing:
There could be leaks in one or several of the hoses in the refrigerator,
which results in the cold air being lost instead of circulating
properly throughout the fridge and freezer.
If you have the freezer so full that the cold air can't circulate, your
food will thaw even though the freezer isn't malfunctioning. Always
leave some space open in the freezer and try to not store food right up
against the cooling vents.
The thermostat might have shorted out, which means the freezer can't
accurately determine how cold it is. If this is the case, the
refrigerator would probably not be working, either.
If your defrost drain becomes clogged, the water in the line will just
refreeze over and over again, which could damage the lines as well as
the fan. Always check the drain and make sure no sludge is building up
in it if you have a self-defrosting refrigerator.
Always try to keep the freezer door closed for long periods of time. The
more the door is opened, the more warm air is let in and cold air is
released. If the door is opened frequently, the freezer could be warming
faster than the fridge can cool it, which will thaw your food.
I hope this helps........
Good luck.
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