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Air handler model #aruf 048-00a-1

The blower works for heat but will not work on a/ci have changed the fan control broad but it made no differance

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 27 Answers

SOURCE: Air handler fan runs nonstop in heat mode

is this a new problem? the fan speeds can be adjusted by changing wiring connections. If it is a new problem on an existing system then it could be the t-stat or a problem with the curcuit control board. the switch on the t-stat for FAN is set to auto not ON. if set to on the switch to auto - problem solved.

Posted on Nov 26, 2008

  • 415 Answers

SOURCE: RUUD UBHA-14 J11SFJA air handler. The fan (blower) doesn?t runs

Absolutely, however, you want to properly diagnose the reason why the fan is not running. It could be a less expensive part than the fan motor itself.
First, check to see if you have the proper voltage going to the motor. I believe your motor requires 240volts ac. If you do not have 240 volts, you have a control problem.......either the thermostat is failing to close R & G or your blower relay may have failed to close the contacts necessary for your fan to operate.
If you have the voltage, then you want try spinning the blower wheel with your hand. Does it spin freely? Is the motor warm/hot? If so, turn everything off for an hour or so. As soon as your energize it, try spinning the motor with your hand again.....if it spins freely with no resistance and then starts running by itself, the problem is the run capacitor (approx $20.00 depending on where you purchase it from). If there is resistance when you try to spin it, the problem is most likely with the bearings and you will need to replace the motor.......if you have to replace the motor, go ahead and replace the capacitor also, making sure it is properly "matched" with your new motor.

I hope you find this to be very helpful to you, moving forward. :-)

Posted on Mar 28, 2010

  • 1524 Answers

SOURCE: I have a Goodman ARUF036-00A-1

There should be a fan control center for the unit to switch from hi speed for cooling, lo speed for heating.

Posted on Jul 28, 2010

  • 5 Answers

SOURCE: my modle number is aruf 036-00a-1 my serial number


Posted on Aug 06, 2010

  • 1515 Answers

SOURCE: My Nordyne air handler has

Hi, there are a couple of things that will cause your air handler to ice up, some you may be able to take care of your self, and the last you will need to call out a service tech. First of all, you must have a clean filter at all times. 2nd, if the indoor coil has gotten dirty, this will cause decreased air flow across this coil and it will ice up very bad. Cleaning or I should say, getting to this coil to clean can be a job. You will have to bend the sheet metal panels, remove some screws, and work around the freon lines to get back to it enough to remove the sheet of dirt that is covering the coil. It will peel off like a sheet. When they get this way over the years, they will block the return air back through the coil, and it will ice up.Once it is cleaned, you may have to buy a roll of aluminum tape to seal the areas that didn't go back together very good. If your blower motor is not moving air very good, like it is ready to go out, moving slow, or making noise, this will do the same. The last thing that will cause this, is the unit has a small freon leak. If your air handler is gas, you can turn on the heat to melt the ice off faster, if not, turn just the fan on to melt the ice away. Once its gone and you have good air flow, turn the a/c back on and go to the outdoor unit. Place your hand above the fan guard to see if the air is good and warm to hot. Find the large copper line below and grab hold to make sure it is good and cold and is starting to condensate. The smaller line, discharge should be good and warm to hot. This will tell you the freon level is real close to being full, so your problem will more then likely be a dirty, plugged indoor coil. More then likely, this is your problem and would be something you could do your self to save you $$$$. I hope I have helped you on this and given you some direction to go on. I have done this for many years, and know the signs very well. Please don't forget to rate me as I know you will be kind. Please keep me posted on the outcome.
A/V, & Heating Contractor

Posted on Oct 04, 2010

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1 Answer

I have a Carries AC unit (model FK4CNF002). Heat pump in the outside works but blower doesn't (tried both heat and cool). Power load (240V) on the blower is there and I also measured the voltage on control...

If you have determined that the line voltage is getting to the blower motor then the unit is defective and needs to be replaced. Check for the presence of the voltage at the wires going directly into the motor to make sure. It is not the compactor relay because it supplies power to both the compressor and condenser fan. If your air handler is inside the house, the housing also has circuit breakers for the fan motor - check that also.

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My unit won't turn on with either heat or ac

first check por power ,then thermostat,if that does not work call an a/c tech to trouble shoot the air handler you may have a bad fan blower,capacitor ,control transformer or sequencer

Jan 14, 2011 | Heating & Cooling

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Jan 12, 2010 - My air handler fan (american Standard #TWE065E13FBO) works during a/c operation but not during heating operation. Checked continunity through the the thermo sw and throught the heating coils...

You need to check if the air handler fan running.Suppose if you donot see it then, check to see if the fan on the outside unit is running. If the fan on the outside unit is not running either, check to make sure that the breakers for the furnace/air handler and the air conditioner are on. Also if the breaker is not tripped, then the problem may be your thermostat, the furnace/air handler control board, or the wires between the furnace/air handler and the thermostat.

Let us know if you need further assistance.
Thanks for contacting

Jan 12, 2010 | Heating & Cooling

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We have 2. LA125HV w/ 1 condensing 1. air handler

I could not find a "fault code" list for the LA125HV but for thier Multi Split Units LG lists code CH7 (C7) as "Indoor Unit is Set in Different Cool/Heat Operation Mode." So maybe your air-handler tihinks it's in Heat mode will the compressor is in Cool mode, or vice-versa....

Dec 07, 2009 | LG LA125HV Split System Air Conditioner

1 Answer

Air handler fan not working

Check the fan relay switch in the air handler.
Check the fan motor capacitor.
Check the fan blower wheel for binding.

May 25, 2009 | Heating & Cooling

2 Answers

My air handler comes on ,not the outside unit when my thermostat is in the off position even if i turn the thermostat down to 50 and have it turned off the air handler comes on for about 5 to 10 minutes...

If you have a standard thermostat the fan switch is for the air handler only. It completely over rides the thermostat for most settings. Now lets see this is what I'd expect:
fan switch on Indoor fan runs all time
Fan switch auto Indoor fan only runs when thermostat is set to cool or heat and the thermostat is turned up above room temp for heat or below room temp for cooling. In both of these modes the furnace blower comes on and stays on til the room temperature is satisfied. The outdoor unit only comes on for AC the out door unit will not come on for heat or the "on" setting on the thermostat. See exception 1 & 2 below...

Exception 1- (in a heat pump the out door unit runs in both heat and cool mode unless it has emergency heat turned on then it will not come on outside in the heat mode, and depending on the type of heat pump and furnace or air handler it is). A heat pump thermostat usually has "backup heat" and an "emergency heat" setting switch on the thermostat.
Exception 2 - On some thermostats they are made to cycle on the heat if the temperature reaches a preset temp (around 50'f usually but definitely by 40'f). This mode prevents freezing when if instance the homeowner is away or while the home is under construction. In this mode the fan inside can run but the heat usually comes on with it.
Exception3 - On some electric furnaces the heating strips may be individually controlled and thus not all come on at one time. This may give the feel of no heat especially if the room is cold.

Now there may be other exceptions but Ive tried to give you a heads up on some of the most common ones.
If you need more help please post more specifics about your unit/system as to for sure what switches are set to what setting and what is happening with each. My first though was that maybe your system is OK and you needed to know if the thermostat was working properly.

If this helpd you understand your problem would you please give me as hifgh a mark as you can. Thnaks for using fixya and good luck.

Mar 28, 2009 | Carrier Heating & Cooling

1 Answer

Rheem heat pump. blower will not turn off

The fans are set to delay for 60-90 seconds to remove all heat from the heat exchanger/heater elements.

If the fan runs any longer than 3-4 minutes after the Emergency Heat shuts off, you may have a bad sequencing relay in the air handler.

Jan 27, 2009 | Heating & Cooling

1 Answer

Connecting electronic air filter to furnace fan

You may need a "current sensing relay" to clip around the neutral wire on your blower.
Run the 120v power to the main power (the power switch- hot,neutral and ground) . Run the Hot wire through the "Current Sesing Relay" wires to the EAC unit's 120v. power input. The unit will only run when the fan is on.

Hope this helps,

Dec 31, 2008 | Goodman Heating & Cooling

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