Question about Air Conditioners

2 Answers

My Goodman Mfg AC unit is blowing fuses on the control board inside the blower/air handler unit. This fuse supplies 24V to the outside compressor unit. Originally, there was a 3 A fuse in it. I replaced it with a 5 A fuse that lasted for a year. Now it has blown. I suspect that the solenoid actuator coil on the outside compressor unit is becoming lossy and drawing more amperage in the hot weather and my solution is to replace that component. Does that sound right?

Posted by on

  • 1729 Jul 06, 2008

    Thanks Burzerko!

    I replaced the contactor on the outside unit as a first step, but the problem really turned out to be my 9 year old Honeywell digital programmable thermostat. Although apparently functioning OK for the past year, it was actually drawing more current than it should have and was the culprit for the blowing fuses. Late in my day of troubleshooting, the thermostat finally completely died and made the diagnosis obvious. I replaced the thermostat and have been back in business using the smaller 3 Amp fuse up on the control board.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

This must be a diy board

Posted on Dec 17, 2008

  • Goodman_cool Dec 17, 2008

    well ya all have fun, sound s like to much work for me like they say Thank Goodness For Goodman

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 254 Answers

Actually you might get a ohm meter the reads to at least 40 megaohms and check the coil on the solenoid valve as well as the coil on the contactor. That would determine which coil ic failing. They should read out above 40 megaohms.

Posted on Jul 05, 2008

  • burzerko
    burzerko Jul 06, 2008

    Glad you got up and running again please feel free to contact fixya in the future if you need help again.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Heater/AC outside unit.....Goodman PGB042-100-1 Unit will not run.


with new fuse in you need to check if there is 24v from transformer and at the 2 control wires that go to outside unit.

Mar 17, 2014 | Air Conditioners

1 Answer

Were is the reset button on the unit?


Hi, here is the theory on the reset button on Air Conditioners. They reset via the breaker panel box in your house. Check that first before anything else. However if your unit is popping breakers, it is because the rating for the breaker is incorrect, or there is something that needs servicing usually in the outside unit called the condenser. That piece contains the compressor. A faulty compressor and pop the breaker. Or If the condenser fan that blows over the coils of the outside unit stops (common failure) The compressor will overheat and shut down. That may not trip the breaker but the house will get hot anyway. Usual action for this is to replace the condenser fan motor and starting capacitor. Make sure the speed rating and directional rotation for the replacement motor is the same as the motor removed.
There are other reasons why the system won't come one fully. If the wall thermostat is digital and does nothing. including turning on the fan. There will be a small fuse located on the circuit board of the air handler (part of Air Conditioner mounted inside the house. It houses the circulation fan). That fuse could be blown. That one shuts down just about everything.
On air handlers mounted up into the attic crawl space there is an overflow pan. This pan is mounted directly below the air handler. This pan can fill with water when the drain pain contained inside the air handler starts to overflow because the drain system to that is clogged.
There is a "float switch" mounted in the overflow pan wired to the system in such as way as to shut down the entire AC system if that pan fills.
The handling is to clear the obstruction in the Drip Pan inside the air handler. Then remove enough water from the overflow pan and the AC will run as though nothing has happened.
If you have more questions, write to me on this site.
One thing more. The capacitor alone in the Outside condenser unit can fail and that will stop the condenser completely if it is of a "split" design and used for both the compressor and fan. When replacing this unit alone, ALWAYS find the same specification part.
I hope this helps,
Have a Happy New Year,
Mark

Jan 02, 2011 | Goodman CLJ30AR32 Air Conditioner

2 Answers

My 5 ton Goodman Heat Pump won't go into heat or ac mode. Fan won't turn on. No noise from compressor. System is 1 1/2 yeras old.


Easy: Turn the "fan" switch to on at the thermostat and see if the blower starts. If no start, check breaker at breaker box. Check service disconnect at or near the air handler. With the breaker and/or service disconnect OFF check the 3 or 5 amp fuse inside the top cover in the air handler.
Not so easy: (You must know what you are doing for this part or let an HVAC Tech do it for you) Open thermostat and firmly jump the Y and R terminals to see if you get the compressor to start for no more than 30 seconds. (don't do it more than once.) Jump the G and R terminals to see if you get the blower to start. If so, u have a bad thermostat. If not, check the transformer inside the same cover in air handler for proper voltage. (24V. Make sure you also get 220 on the opposite side of the transformer)
If the blower comes on, but the heat pump doesnt start, open the side cover of the heat pump, with the thermostat on cool, and the temp. setting as low as possible for at least 10 minutes see if the contactor is pulled in. If so, check the capacitor and see if it's blown out. Be super careful these systems operate with 220v and the amperes are enough to kill you if you make a simple mistake.

May 20, 2010 | Goodman CLQ36AR49 Air Conditioner

1 Answer

Goodman Air handler blowing fuse if switch outside unit not runni


Sounds like your compressor in your heat pump is siezed . You can try a "Hard Start" Capacitor...which basically gives your compressor a kickstart and works 95% of the time when compressors get older....It's hooked up in parallel with the existing Capacitor...if you're not familiar with Electrical etc I would call an expert and mention what I said . If this doesn't work you will likely need a new Compressor/Unit . You could also have a short to ground in the heat pump side....likely the compressor is the problem however the original Capacitor could also be the problem

Oct 27, 2009 | Air Conditioners

1 Answer

Ac blower will not run while ac is turn on but run by itsself


That means you have lost 24 volts somewhere.

The most common causes for that are as follows.

1) a blown fuse. (usually a blade fuse mounted on the board)
2) a broken/loose/disconnected wire.
3) a bad 24V transformer.

When the unit loses control voltage (24V) it brings on the blower motor. This is done for safety reasons.

Oct 03, 2009 | Goodman CKL24AR24 Air Conditioner

2 Answers

Outside unit will not come on


Check the starter capacitor, and di you remember to add oil?

Aug 27, 2009 | Goodman CLQ36AR49 Air Conditioner

1 Answer

I want to find the transformer for the 36 volt inside unit. Is it in the inside unit or outside unit .I have no power to the inside unit however the outside unit has power,and the inside unit appears to be...


It's a 24v transformer. Your indoor unit houses the transformer for the outdoor unit. The outdoor has a low voltage (24v) supply running to it to push in the contactor for the outdoor unit to run. If your air handler inside has no power then it will kill your LOW VOLTAGE power to the outdoor unit. You will still have the high voltage power to the outdoor unit. You may have a fuse on the switch for your air handler blown if there is one. On the disconnect switch mounted to your air handler, you will have a door to open and a fuse in there. If not, check your main breaker at the panel. If you don't know what a transformer looks like, you may want to have someone familiar with electrical of HVAC help you. To check the transformer for power, you first need power to your air handler, which you don't have. I would say that is not your problem. I would assume your air conditioner is not running outside, correct? Your problem is the power (HIGH VOLTAGE) to your air handler. Loose wires, blown fuse, tripped breaker etc...

Aug 06, 2009 | Comfort-Aire HMC36AT-1 Air Conditioner

2 Answers

Problems with low voltage control wiring turning on cond. unit


Only 2 wires going outside.
Yellow from the thermostat and the common wire from the lv side of the transformer.

Apr 28, 2009 | Air Conditioners

1 Answer

Goodman CPB 42 Heat/air packaged unit


did you turn off the air handler when you changed the contactor could have shorted and blown a fuse on the control board. did you get a 24v coil on your contactor. do you have 24v at the contactor when unit is calling. check your wire connections

Jan 31, 2009 | Air Conditioners

Not finding what you are looking for?
Air Conditioners Logo

Related Topics:

360 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Conditioners Experts

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Bill Long

Level 3 Expert

577 Answers

Tim Whalen

Level 3 Expert

3056 Answers

Are you an Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...