Sounds like a fan is running for 3-5 seconds then pauses for 1-2 seconds then repeating almost 24 hrs a day. During the pause it howels like an air conditioner running. If you open the freezer door you can here the fan behind the ice maker is were the noise comes from and it continues while the door is open.
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Re: Fan or motor contantly running and howeling
It really sounds like you need to replace the evaporator fan motor if it sounds like an a/c fan (if it sounds cyclic, metal on metal, screeching, or even like a light aircraft then the bearings are probably failed). The only addition I would make to this is when checking the fan motor with the back cover off you check for any undue ice build up on the coil which may be causing the howling (TO RULE THIS OUT). Hope this helps.
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check your themostat fan mode switch to see if it in on or auto. It should be in auto. If this does not stop indoor fan motor, (it may take up to 2 minutes for the fan to stop, preprogrammed shutoff in the thermostat and fan control cards may make you think the fan has not stopped ) If this does not stop the fan the fan control board in your air handler has a green wire shorting to 24 volt signal in the theromostat wire or the contact on the blower control card is stuck and will need replaced.
I have taken one apart. reassembled and the fan would not turn, although there was power to the motor and it wanted to turn. Sorry this is long...only this is about taking the motor itself apart..and I have yet to find a replacement motor.
1. Tried a little WD 40...(only on iron motor Housing!) nothing. 2. Took apart inside of motor. some rust inside.. 3. carefully rubbed clean with WD 40.. 4. leaned off WD 40 with contact cleaner... 5. Then worked little bearing loose on back side. -Kind of turned upon reassembly.. 6. Found some silicone High temp lubricant and took motor inside part again. 7. a very thin coat of lubricant inside rotor. -Re assembled yet again..began to turn at high speed, kept running..24 hrs.. - It .finally turned at silent mode. and continues to work This may be ar beyond what you want to do, however if all else fails...what else can you do? buy another one? Tips: 1. mark rotor holders with housing. (do not reverse.) 2. make sure you remove all lint, dust, etc inside. 3. the rotor bearing I had to work by hand again and again repeatedly syringing a little WD 40 at a time to until it turned easily.
Your lamp is rated for 3000 hours. Is the fan working to cool the lamp? When you turn off the projector do you allow the fan to continue to run? If not the lamp is not cooling evenly and the lamp will fail. Th filters should be cleaned regularly and the vents be unobstructed.
It sounds as if the compressor is overheating causing a large current draw throwing your breaker. If the coils are durty on the back....clean them..also clean the coils under the frig by the fan motor.
Make sure that the condenser coil is not dirty. If so clean it. Have you actually seen the fan in the back of the unit running? It has 2 fan motors. One on the inside of the freezer and one on the back of the unit. The one on the back not working will cause it to get very hot and so will dirty coils.
it is a bad fan. it also could be a power supply. Quite often the real problem is dirt clogging up the fan(s) to the
point that they need to be replaced. Operation of the set in a dirty
environment is not a good idea