Black smoke coming from heater vent?

SOURCE: Rattel inside LAsko Uprigth twoer fan

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.
George
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.

SOURCE: Gas heater shuts off & won't come back on

sounds like the thermostat replaceing it should help you could try cleaning the old one they can get dust it them

SOURCE: Ducted heating unit blows cold air and fan is always on..

that s correct the control is done by the thermostat stop the heating up to your set point and restart if the medium temp is under the set point
if this sequence fail means
- no power to the control element or is defective
thanks

SOURCE: Rinnai Energy Saver 302 convection gas heater has

Energysavers have fixed flue lengths, more likely your problem is the thermistor at the bottom left of the heater inside the grille getting a false temp reading. Look for yellow wire with a black bulb (like a drop of water). measure the air temp next to it while heater running, if its above room temp down there the heater will turn off early. It needs to be clean and have unobstructed air flow over it for it to work correctly.

Dan Webster

• 8221 Answers
• Posted on Mar 03, 2010

SOURCE: Just had an American Standard Freedom 95 furnace

Most furnaces have a tech manual inside. Under the blower cover should be a trouble shooting guide. Call the dude and tell him what the problem is. You have no other source of heat and you live in alaska?. If I was you I would invest in a comfort glow gas vent free heater for emergency. No power is needed to operate the heater.


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