On this Sharp AR-M 350 the customer is complaining about a noisy fan. The fan in question is the one above the fuser. Should this fan be running at all times or does it only come on at certain times? I ask this because I removed the cover to inspect the fan and noticed it wasn't running. The customer always stated that the noise sounds like an airplane taking off, and it is made when the machine is just sitting unused, and also when in use, but it doesn't happen all the time. Thank you for any help given.
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Re: Noisy Fan
I don't have that model handy right now but if I remember correctly those fans cycle on and off. Like said above those units go bad. The LSU can make that noise also. All fans can and will go bad.Comment
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Re: Noisy Fan
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Paul@justmanuals.comComment
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Re: Noisy Fan
That's a common fan to fail. It sits directly over the fuser and gets roasted ... for years. You can get the fan separately, but if you're going to the trouble, replace the delivery turnover assembly. It's probably crumbling too. Maybe you caught it in time.
Failure of this fan usually results in the drum cleaning unit fusing solid:
Chip out the cleaning unit. Replace the delivery/turnover fan (NFANP0069FCZZ), cleaning auger (NROLP1354FCZZ), gear 14T (NGERH1417FCZZ), drum (AR-451DR), lower seal, & blade (AR-450KC1).
Or maybe H2-01 errors.
Reform thermistors. Tighten lamp terminal screws. Also check that delivery fan runs at low speed during idle.
The same fan is used in the left inner door, and fails there too.
By the way, these fans are supposed to run all the time. Low speed during idle, high speed during printing. When they start to fail the fan will stall out during idle, or buzz, vibrate, or screech. You'll feel the vibration in the delivery/turnover top cover. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: Noisy Fan
You can always clean the blades and oil the bearings for a short term fix and verify that is the fan causing the noise.
If it comes back, clean and lube again and order a new one.
There are alternatives than just throw a new one in and throw away a repairable part.Why do they call it common sense?
If it were common, wouldn't everyone have it?Comment
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If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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