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Sounds like a defrost timer.Also it can be a defrost thermostat.Try to adcance the defrost timer to a defrost and see if it melts the ice off.If so then i would say you need a defrost timer hope i helped:)
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Is the compressor running? if it is running, but there is no cooling, it is time to buy a new freezer.
If the compressor is NOT running, I would suspect the compressor start relay.
How did you defrost it?
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.
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.
Hi, sounds like your defrost clock is stuck in the defrost mode. On most true boxes they have a paragon defrost clock with adjustable pins you can set the amount of cycles and duration of the defrost cycle. Find the clock and give it a turn in the direction of the arrow or cw. It will come out of defrost and start to freeze again. If it continues, you may need a new clock. Let me know what you find. Keep me posted. True boxes are top of the line Sincerely, Shastalaker7
Check to condenser coil and make sure it is clean and the fan near it is running when the compressor is on. Check for ice build up in the freezer. If the evaporator coil is iced up the box will run warm. It may be a defrost problem, a dirty condenser, or a refrigerant issue.
Check rear wall of freezer by feel for frost. Heavy, even frost indicates likely problem in the defrost system. Unplug unit. Defrost heater (in freezer behind rear wall panel), defrost thermostat (same area-must be checked at freezer temperature) or Defrost timer-located lower back outside of unit. Near compressor. Do continuity test on heater and defrost thermostat and if they show continuity (good), replace defrost timer. If not, replace the one that tests bad.
Defrost coils fully. Reassemble.
Please let me know if I have helped with comments and rating.
Refrigerator will work about 7-10 days after being defrosted until thick frost builds up again cutting off air flow to both compartments
There are 3 parts to the defrost system,Which did he replace? You should ask and don't name the parts for him,Let him tell you what he replaced.Here are the 3 parts to listen for.
Improper installation,a faulty part,or a short could cause it to fail in that short time.
When you say it is frosted over, do you mean the interior of the freezer is frosted, or the evaporator coils?
A couple things to check for:
1. Is the door gasket making a good seal when you close the door? A good quick fix for a bad seal on the gasket is to rub a thin layer of Vaseline (the original jelly kind works best) on the rubber to help it stick and to fill any scratches that might be keeping it from sealing tightly.
2. Is the fan running on the inside of the freezer? The evaporator coil in the freezer needs a fan to blow air over the coils to keep them from freezing over. They don't run continuously, and on some units will turn off when the door is open, so try holding the door switch shut when you check.
3. Is the defrost cycle working? Frost-free freezers have a defrost cycle in which a small heater turns on to thaw any frost that has begun to form. To check the functionality of the heater and the defrost timer will probably require a visit from a technician... It would take a while to explain it here, but if check the first two and come up empty handed, post back. You will need a volt/ohm meter.
Check that the fanmotor is running and is not obstructed. If it is running, then you have an ice build up on the freezer (evaporator) coils. This can be caused by failure of the defrost system. Either the control board needs replacing or the defrost element, or the thermodisc.
Turn cold control to Max. This keeps your compressor running for this troubleshooting exercise. Find and manually advance the defrost timer with a screwdriver or something similar. This will shut the compressor down and bring the defrost heater on. If this happens then you will know that your timer is bad.
If it is not that, the next thing to look at is the defrost heater itself or the thermal overload on your defrost heater. This keeps your defroster from overheating.
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