Original message
| dev
|  "Furnace"
, posted Sun 27 Nov 11:17  
what all the preventive maintenance measures to avoid Furnace breakdown?
Sincerely dev
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Replies:
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| acefurnacefixer
| "Re(1):Furnace" , posted Wed 30 Nov 06:56
The furnaces being manufactured today, are so different then what we installed a half century ago. The old furnaces were pretty simple and basic in the operation. Todays furnaces use intergrated control boards stuffed with lodgic and redundency, safties on top of safties, combustion blower and blower motors that you can even oil any more (the old timers hate that).
The fact of the matter is, due to cost cutting measures and the cut throat competiveness of this trade, most furnaces made today will have some type of major componate fail, maybe more then one. Ignitors wear out just like a light bulb, you get so many lights out of it then it just simply burns out.Flame sensors get burnt up and reek havoc on ignition control boards.
Combution motors turn faster then your car engine on the highway (3100 to 3500 rpm) and deal with heat, dust dirt and moisture, and just like the blower motors.........you cant oil them.
So you may ask your self "why should I even have my furnace serviced if i am going to end up with a service call any way"?
Its simple........a well trained and exsperenced service tech, with the proper tools can find alot of problems before they end up being a late nite or cold long weekend with no heat.The only wild card is the control boards......usally when they fail its a intergrated relay or a diode or capacitor on the board itself that has gone bad. In todays market its not cost effective to check every single componate on the board durring a PM.
Filters are more important now then ever. ALL furnaces sold in North America come with high tempature limits, most open at or around 150 to 250 degrees. A dirty filter will cause a limit to open and leave you with out heat. The older furnaces used a "fan/limit" como, and if the furnace when off on the limit, it would cool down and re fire on its own. Now it requires a visit from me to either reset it or replace it.If your filter is 1" wide (16 x 20 x 1) for exsample.....all X 1 filters should be changed every 30 days of use.If your filter is hard to change or difficult to get too, then consult your tech about making it easier to do......you may spend a couple hunderd dollars, but its cheaper the a new furnace.
Well i am rambling on so Ill stop now, but I hope this answers some of your concerns about maintance.
Forgive my spelling..........im paid to fix it not spell it.
Yes! I CAN fix that!
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| | dev
| "Re(2):Furnace" , posted Wed 30 Nov 15:38
I got the meaning of all the mis spelled words. Thank you for your time.
Sincerely dev
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| | acefurnacefixer
| "Re(3):Furnace" , posted Thu 8 Dec 07:12
They dont pay me the big bucks to write stories..........If its broke I can fix it, I just cant spell it.
Yes! I CAN fix that!
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