Hello,
I have just moved into a new house (rental) and am having some problems
with the furnace.
I need to get the house in order before I can start on the carport (my
shop, see I almost got this post on content)
I would just as soon fix the furnace myself (in exchange for rent) or be
able to diagnose some problems and perhaps push for replacement, really
would like a replacement.
I've searched on the web but all I can find are furnace repairing services,
not much DIY info. If anyone can point me in the right direction I would
be grateful.
While the house is only 5-7 years old, the furnace was probably (Ok
definately) used. The house is a text book case of how Not to build, and
everything was scavenged and quality is a joke.
I can't read the data plate on the furnace to get make/model, this will
probably make it difficult to get parts. I just tried cleaning it and I
think I managed to remove as much of the writing as I did the grime. Oh well
The first problem is that the fan doesn't run correctly when the thermostat
is on automatic fan. It doesn't seem to start when it should and shuts off
even while the burner is running. I suspect a bad sensor.
There only seems to 3 sensors in the furnace-
One for the pilot light (connected to the gas regulator)
Another placed above the burners in the heat exchanger area (also
connected to the gas regulator)
And the third is placed even higher on the furnace, still in the heat
exchanger/exhaust area. This is the one I suspect. I don't have a meter
to check this sensor and just pulling the 2 connections and trying them
both open and shorted seems to make no difference. Would this be a
thermistor type sensor that would create a voltage with sufficient heat, or
is it just a switch that would short or open?
The other main problem is that the furnace seems to run extremely hot, the
metal towards the front top by the hot air output is extremely hot to the
touch. I mean it will burn you. This doesn't seem right and since this
portion of the furnace is only a couple of inches from the walls can't be
safe. Could this be a cracked heat exchanger?
Thanks for any help, once I get the house and office in order I will be
starting on other fun projects (I am going to research wood burning
furnaces right now, did I mention the house it located on 100 acres, much
of it wooded? Propane is expensive and I haven't gotten to run my chain
saw much lately. I'd rather save my money for a 4 wheeler to move wood
than pay for propane.)
Matt Wehland mwehland@webtripper.com
Computer Network Specialist
MCSE CCNA
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