How to lubricate fan bearings in furnace?
So in our 27-year-old Winnebago Warrior, we have a Suburban NT30KLT furnace. In the last couple of years, the first time it fires up you can hear the fan bearing squalling a bit and then it quiets ...
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On our trip in 2011 we were having the same problem and in Hill City with the temp hovering about 2i degrees, at about 02:00am, the darn thing woke half the campground with it's scream. Had I oiled the bearings earlier it would likely been good for a year or two more but eventually it is going to die at the most inconvenient time, so my recommendation is get a new motor or a new heater.
It is a pain but you can find a new motor, they do exist. Contact Lichtsinn in Iowa and ask.
No matter what you do, oil or replace, you will have to pull the heater. Exhaust intake tubes off, cabinet torn apart it is a royal pain. Then you have to get the squirrel cage off, be very careful, there are tools for doing it but harder to find than the motor, so if you can get a motor with the fan attached, DO IT.
Have fun and good luck.
It is a pain but you can find a new motor, they do exist. Contact Lichtsinn in Iowa and ask.
No matter what you do, oil or replace, you will have to pull the heater. Exhaust intake tubes off, cabinet torn apart it is a royal pain. Then you have to get the squirrel cage off, be very careful, there are tools for doing it but harder to find than the motor, so if you can get a motor with the fan attached, DO IT.
Have fun and good luck.
