Question about Lasko 5440 Ceramic Compact Heater
I purchased a Lasko Upright fan for my office around a year ago. It has just started making a rattling noise. I checked the obvious things like lose fastners and everything is good and secure. The nosie sounds like it is coming from inside the fan housing. I run this fan very litel as must of my day is spent in the field, my first thought is a bad bearing. What do you think?
I would assume your diagnosis is correct for the most part. In these units they use less costly bushings in in place of bearings. The original lubricant in your bushings has dried up which is a very common problem in heaters. The heat tends to cause lubricants to evaporate. The first thing you want to do is oil these bushings with a heavy oil such as 90 W gear oil. Any motor oil will work fine, but the heavier the oil the longer you will be able to go between lubrication cycles. If the bushings are out of acceptable tolerances that lubricating does not cure the problem the only other way to fix this is to replace the bushings or simply replace the unit. I hope this was helpful. If you need more help with anything post it here and I will help you for free. That way you will get me when you need free accurate help.
Ps. Make sure you do not use excessive oil as this is a heater. You can go to the pharmacy and purchase a syringe like a 18ga 1 inch to use to apply the oil. Just tell them what you need it for so they don't think you are going to use it on yourself.LOL. This is what I use, You do not get oil all over the place when you use a syringe. Hope to here back soon. Keep me posted hoe you make out.
Posted on Jul 28, 2008
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Posted on Jan 02, 2017
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