Fridge making a purring sound then stopped working
I have a zanussi frost free fridge freezer, been making noises like a moterbike engine, it has now stopped working but the freezer is still working only the fridge has stopped, do you think it can be repaired?
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Re: fridge making a purring sound then stopped working
Yes, I think you have a problem that can be fixed easily by a repair technician. The sound as you described it could have come from the air circulation fan in the freezer compartment striking ice. As the ice builds up it could have stopped the fan from rotating and air flow to the refrigerator compartment.
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Because it does not achieve the correct temperature (for example: -18 degrees centigrade).
For a more precise answer I need more information.
A lot of things may be incorrect:
- Doesn't work defrosting cycle
- The cooling fan is not working
- Too much ice on the evaporator battery
- Faulty thermostat or NTC sensor
- Faulty cooling system (gas leak)
Insufficient cooling is a fridge repair job that you can do without the help of a professional. Often the fridge has a frost-free failure, or the compressor is faulty but there are many other reasons for a fridge not cooling properly. Step 1 - Find the Problem
Your first job is to locate the source of the problem. Consider each of the following:
* Gaskets - Make sure the gaskets/seals are not torn and are sealing properly. * Evaporator fan - Make sure it is working. If it is now working you may have a problem with the fan motor. Check for power to the motor and also examine the fan switches around the door (not all fridges have these switches). * Air damper - Sometimes the air damper will not open up to allow the cold air from the freezer part to blow into the fridge section. * Condenser coils - Check to see that the condenser coils don't have a dust build-up and that the condenser motor is working. * Compressor - Make sure your compressor is working with on and off clicking noises.
Step 2 - Frost-Free Failure
This is the most common cooling problem in fridges. Expose the evaporator coils by accessing the panel in the freezer section. The coils in the freezer section can sometimes get clogged up with frost. This can stop the evaporator fan motor from blowing cold air around, or cause the fan to hit it and stop, or become noisy. The defrost timer can be a bit tricky to find but it is usually located behind the back bottom corners of the fridge, although they can sometimes be found in the ceiling of the fresh food section, or behind the cold control cover. Step 3 - Find the Timer
When you find the timer, turn the wheel-like screw slowly with a screwdriver until the fridge shuts off. The refrigerator is now defrosting. If you find that the fridge starts now, you will need to replace the defrost thermostat and the defrost timer. Step 4 - Volt Test
If the heaters do not come on, use a volt meter to ohm test the defrost heater or volt test for 120 volts to the heater. You can bypass the defrost thermostat if you haven't got power to the defrost heater to check if the defrost heater will come on. To bypass the thermostat, join the two wires together. Replace the defrost thermostat and the defrost timer if the heater comes on now.
If there is a ticking or squealing noise in the defrost timer, or it seems hot to touch, replace it.
Many fridges have and inline fuse on both sides of the defrost heater. You will need to replace the whole heater if one of those fuses blows. Check these fuses with a volt meter if the defrost heater doesn't work.
A quick check if you have a cooling problem is to inspect the evaporator coils. If there is a build up of white snow on the coils, this indicates a frost free problem; if there is balled ice on part of the coils with the rest bare, this indicates a system problem, like a problem with the pumping compressor. Take care in solving the problem....
Sounds like the defrost system of your freezer is not working. It could be either the defrost timer, defrost thermostat or the heater has a problem. The defrost timer turns off the compressor periodically to sent power to the defrost heater via the thermostat. The defrost heater then powers up and heats the evaporator coil to melt the accumulated ice buildup on the cold coils. Most likely issues are that the timer motor is not advancing the timer or the heater itself has burned out.
A fan controlled by a thermostat is required to move the cold air from the freezer to the refrigerator for cooling. Use a volt meter testing the voltage on the fan. If you have voltage it is a bad fan. If you do not get a voltage test the thermostat. If it measures zero ohms short the thermal switch or if it is a short open one lead. If the fan works replace the thermal switch.
Frost free fidges are supposed to stay frost free because the automatically defrost regularly. When they do this they may drain water down to the bottom of your fridge. Look for a tray that catches this water underneath the unit. Make sure yo keep it emptied. If you live in a very warm climate you may be getting a lot of humidity inside. There may be a switch that you can change for lower moisture.
Hi, You will find that your problem relates to the defrost heater in the freezer. You will need to take the drawers out and remove the back panel to access the evaporator. There is a foil heater that lays underneath the evaporator and it will need to be changed. Along with the klixon that controls it. This will ensure that both parts are good. Your problem will then be fixed no more water!