2014년 1월 6일 월요일

About 'furnace inducer motor'-What Is a Draft Angle







Go to last comment about ' furnace inducer motor?' Really useful advice... Hi, I totally agree with you... Thank you for sharing this - very insightful... I would like to link this post to mine on drugs... Interesting and well-written Article...



About 'furnace inducer motor'-What Is a Draft Angle








Newer               modern               gas               furnaces               no               longer               have               a               pilot               light               that               the               owner               must               light               themselves.

Modern               gas               furnaces               have               an               electronic               igniter.

If               your               furnace               is               not               working               the               igniter               could               be               one               of               many               problems               causing               the               failure.

The               igniter               is               not               too               difficult               to               troubleshoot               and               replace               if               needed.

If               you               are               not               familiar               with               gas               furnaces               or               are               the               least               bit               unsure               of               your               technical               abilities               it               is               advised               to               call               for               professional               repair.

In               many               cases               you               can,               however,               determine               the               source               of               your               problem.

Before               beginning               any               repair               or               diagnosis               you               should               shut               off               the               gas               and               electric               to               the               unit               you               are               working               on               except.....

Gas               and               electric:
               Your               furnace               will               not               operate               if               the               gas               or               electric               to               it               has               been               shut               off.

You               should               verify               that               the               unit               has               not               been               disconnected               for               any               reason               before               making               any               troubleshooting               attempts.

You               should               also               check               that               the               thermostat               is               operational               and               in               the               on               position               for               heat.

It               may               sound               silly               but               in               many               cases               the               electric               switch               to               the               furnace               gets               shut               off               by               accident               and               the               homeowner               wonders               why               they               have               no               heat.
               How               the               igniter               should               work:
               The               thermostat               "tells"               your               furnace               that               heat               is               needed               and               the               furnace               should               turn               on.
               The               blower               -               inducer               motor               should               begin               to               turn.
               The               pressure               switch,               that               senses               negative               air               pressure               from               the               inducer               motor,               should               close.
               The               inducer               motor               may               run               for               up               to               thirty               seconds               before               gas               flow               starts.
               The               igniter               should               glow               and               the               flame               sensor               should               sense               the               flame               from               the               igniter.
               When               the               flame               sensor               senses               the               flame               from               the               igniter,               the               burners               will               come               on               and               the               heating               cycle               will               start.
               Checking               and               replacing               the               igniter:
               If               the               igniter               does               not               glow               the               flame               sensor               will               not               allow               the               gas               to               remain               on.

The               first               quick               and               easy               determination               for               this               is               if               you               need               to               electrically               turn               your               furnace               off               and               then               back               on               continually               to               get               it               to               run.

In               many               cases               the               blower               motor               will               continue               to               run               without               any               heat               causing               your               home               to               actually               be               colder.
               At               this               point               in               your               inspection               you               should               have               your               furnace               manual               or               an               on-line               pictorial               source.

Be               sure               to               shut               off               the               gas               and               electric               now.

Examine               the               igniter,               identified               by               your               manual,               but               do               not               touch               the               glass               portion               with               your               bare               hands.

Oil               residue               from               your               hands               can               cause               a               working               igniter               to               become               non-working.

If               you               see               any               cracks               of               any               size               you               need               a               new               igniter.

New               igniters               are               relatively               low               in               cost               and               not               exceptionally               difficult               to               replace.

Even               so               you               may               wish               to               have               professional               repairs               done               but               you               will               know               in               advance               what               to               expect.
               If               you               do               not               see               any               cracks               in               the               igniter               you               may               very               well               have               a               different               problem.

Your               furnace               may               not               be               working               due               to               a               bad               control               board,               dirty               or               bad               flame               sensor               or               bad               limit               or               roll               out               switches.
               References:               
               
               http://arnoldservice.com/Troubleshooting_Heating_Problems.htm               
               
               http://home.howstuffworks.com/home-improvement/heating-and-cooling/how-to-maintain-a-furnace1.htm
               Author's               mother,               who               wondered               why               they               had               no               heat               when               they               had               inadvertently               turned               off               the               furnace               switch.









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