Question about Carrier Icp Heil Tempstar Furnace Blower Wheel Squirrel Cage 1173688 Hq1173688mn
You need to check to see if blower motor runs in ac mode, if not then the first thing you want to check is the capaciter for that motor. if capaciter is good, motor may be locked up, you can check the amps of the motor by putting an amp clamp around wires going to blower motor, all ratings should be listed on motor
Posted on Oct 17, 2013
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Posted on Jan 02, 2017
The door closed or open should have no effect. The draft motor runs, no power to the glow plug or it is open,
The first place to look is at the furnace brain, a box located somewhere in the unit connecting to the gas valve, look at this brain [controller] and there should be a light of series of lights.
On the box itself there should be a matrix of codes such as: green light flashing= bad glow plug, or red, bad controller box, do you have anything like this?
Most have some sort of led light that narrows down the problem.
If not at least do these things:
make sure the power is off, and that the blower motor spins by hand freely.
next if you have a volt ohm meter, you can test the plug to see if there is a circuit, if the glow plug is open, that is one problem,
If you have a volt meter you can measure the leads at the plug to see if voltage is there or not.
There are so many checks and switches that will operate dependent on the operation of something else.
Unplug the furnace and keep the power off the brain, if so equipped for several minutes, see if it resets.
If it does great, if not tell me if there is a brain box and what the lights are, and what the matrix of light codes say, and we can go from there.
You can also measure for voltage from the thermostat to the furnace and make sure it is getting a signal on all wires, a thermostat wire could have come loose.
very difficult to troubleshoot a furnace when one is in front of it, let along without seeing it.
If you find no box, let me know, and let me know from these checks above if anything changes, or gives you more info to pass on to me.
Step at a time we can find this, a volt ohm meter will be really helpful.
Posted on Nov 22, 2008
SOURCE: Inducer Fan Seems To Be Rattling
what make of furnace check for birds and blockage
unfortunatley when they go there gone the squirrel cage wheel will not come of shaft u will need motor n wheel or a "plug n play housing all in one"
Posted on Oct 06, 2009
The anticipator basically prolongs or reduces the time from shut down to start up, so your furnace or air conditioner isn't cycling too much , off and on. It also will anticipate that the setting you have the thermostat set at is near, and will shut thermostat/burner off early, assuming that the temperature will be reached soon, just from heat already in chamber being circulated through system. If it gets too cold before furnace turns on, adjust anticipator, if too hot when it shuts down, go the other way, but whenever you move it, just go a little at a time, until you get it where you want it.
Posted on Mar 13, 2010
Testimonial: "Thanks for the explanation about anticipators. Do they figure much in furnace problems?"
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