Ok, I have a volt meter so I will get them to see about a diagram and take it from there. Thanks for your input.
At 08:35 PM 12/25/2009, you wrote: > > >I think what I am saying that it is difficult to >follow wiring and such without a diagram. If one >has a volt meter he can check to see if the coil >is getting voltage, check to see if the power is >feeding through the contacts of each contactor, >relay, sequencer, whichever it is called. >Continuity can also be checked on each heating >element. I don't think a element is the problem >on this since there usually multiple one of >these. Being trained on furnaces also gives one >the knowledge of what order things are supposed >to happen. Called sequence of operation. >Knowledge is power. The more you know the easier >it is. Being able to use a voltmeter and >ohmmeter is just about a must unless one is >lucky and sees a wire that has fallen off. And >yes that is a highly likely problem. I will stop >here before I confuse things too much. >Ron >----- Original Message ----- >From: Kevin Doucet >To: <mailto:blindhandyman%40yahoogroups.com>[email protected] >Sent: Friday, December 25, 2009 5:53 PM >Subject: Re: [BlindHandyMan] help friend's electric heat out > >Am I right to think this of which you speak would >be for a person versed in the workings of a >furnace and not for the lay person? >At 03:36 PM 12/25/2009, you wrote: > > > > > >If this just a electric furnace then one of the > >many relays, sometimes called sequencer in a > >electric furnace has the magnetic coil or a > >contact not making. There should be some where > >on the inner door of the unit a schematic or > >wiring diagram. There are a number of these as > >there a number of elements. There is likely > >circuit breakers in the furnace also. Abad > >element would likely trip only one of these. The > >sequencing relays bring the elements on in order > >rather than all at once which would cause > >massive current surges. Doing it in stages > >brings them on in steps that minimizes surges. > >So a failure in the early stages stops the entire process. > >Now if you have a heat pump with electric > >furnace backup it becomes more involved with a > >two stage thermostat. The heat pump should come > >on with a minor temperature drop. When it drops > >more the electric furnace should come on. A > >thermostat failure could cause a problem. All > >depends on many things. Really to follow a > >diagram for the untrained to get anywhere. > >Ron > >----- Original Message ----- > >From: Kevin Doucet > >To: > <mailto:blindhandyman%40yahoogroups.com><mailto:blindhandyman%40yahoogroups.com>[email protected] > >Sent: Friday, December 25, 2009 9:40 AM > >Subject: [BlindHandyMan] help friend's electrick heat out > > > >Hi, > > > >A friend's electrick fernice has stopped working. The unit clicks and > >starts blowing air when the target temp is raised above the current > >indoor temp, but, it never gets hot or changes the indoor temp. > > > >We have reset all breakers but to no joy. > > > >Any ideas as what to try. > > > >Thanks for any help! > > > >[Non-text portions of this message have been removed] > > > > > >[Non-text portions of this message have been removed] > >[Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed]
