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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

  • 182 Answers

SOURCE: Goodman GMP075 Problem

check the mfds of the capacitor.if its ok you need a blower motor.

Posted on Aug 09, 2008

  • 540 Answers

SOURCE: Replacing a blower motor on a TRANE unit

Look on the motor it self or website that motor.! Thank -you-very-much!

Posted on Aug 28, 2008

  • 252 Answers

SOURCE: blower motor humms but wont start runs slow when spun by hand

nope, need a new motor

Posted on Jun 06, 2009

  • 93 Answers

SOURCE: Compressor hums but fan not turning. Pushed fan to

cap most likley

Posted on Jul 16, 2009

  • 246 Answers

SOURCE: Coleman EB23B heat pump: Air Handler Humming Loudly, Blower Runs

If you're mechanically inclined - and you seem to be - with all the stuff you've already done - you should be able to 'fix' this problem - if you decide to after reading what I have to say.

First of all - the humming you hear is most likely your 'fan relay.'

The fan relay is nothing other than an electrical coil that is enerigized by 24 volts from the thermostat. Once it's enerigized - it snaps together a set of points (usually copper) which completes a circuit sending 115 volts to your inside fan motor.

These 'fan relays' are notorious for 'buzzing' especially when they are wore a little. If it was me - I'd change it out to keep from having to deal with it at a bad time, i.e. 4th of July - Labor Day or just a lazy weekend.

If you decide to do this yourself - just be sure you have all voltage off before you mess with it. The relay is easy to find - just trace the line voltage wire - from the relay to the motor or vice versa. It (the line voltage wire) might go to a terminal block (although I doubt it) in which case you just need to determine which wire on the terminal block goes to the fan motor. In any case the relay will probably be black and it will have 4 wires going to it. 2 of the 4 wires will be the low voltage (24V) and the other 2 will be the line voltage (115 volts).

When you remove the relay just be sure you label all your wires so you can replace them on the new one just like they came off the old one. Usually the low voltage wires will go to the terminals marked 'coil' and the line voltage wires will go to terminals marked line but not always. The low voltage wires may go to numbered terminals that has a picture of a coil and the line voltage wires will go to numbered terminals that show an open wire connection.

Try and get an exact replacement but if you can't - have the parts man explain to you (if need be) which are the low voltage terminals and which are the line voltage terminals.

You'll probably have to go to an Air Conditioning Supply House - I doubt if Lowes or Home Depot will have the relay - but hey - it's 2010 - they might have it. Might be worth a try.

Also - if you have a buddy or relative in the AC business you might see if he/she would go by and pick you one up. Some AC Supply houses sell 'wholesale' to everyone but most - sell 'retail' to the general public.
So, if you can get it wholesale it will save you a few bucks.

Last thing... since I'm not there to look/listen to the buzzing - there's a small chance it could be something else - but I doubt it. Also, sometimes if you just 'tap' the relay with a screwdriver or pliers it might stop the buzzing - although I doubt it will stay quiet - it'll probably start buzzing again - but - then again - it might not.

Hope I've helped - and it's something different - get back to me.

good luck!

Posted on Jul 29, 2010

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1 Answer

Why isn't my Rangemaster Hood blower turning when switched on?

Hi Ed
Being a range hood & subjected to cooking fats etc. It might be gummied up around the fan and just require cleaning!
But.... you said it was humming and there is a capacitor close by.
Then it's probably an induction motor thats not getting kick started by the Cap. While it's humming, use a finger (or stick) to push start in one direction or try other direction. If it spins up and stays going.... you've found the problem. The Cap is not kick starting in the right direction. Remove the Cap (with AC Disconnected) and check the values to get a similar replacement.

Good Luck
You searched for Start capacitor

Sep 28, 2015 | Rangemaster Kitchen Ranges

2 Answers

I have a 2008 mobile home. Not sure what brand ac unit. Last night noticed not getting cool air. The blower inside was working. The outside fan was not running. It was humming and very warm on the top of...

The motor is not bad. There is a capacitor on the unit that is used to get the motor to spin. The capacitor looks like a small can and has two or three wires connected to it. IF you work on this unit, make sure that you turn off the power to it. You can remove the capacitor and see what the numbers are that should be listed on it. Make sure you note where the wires connect. Or take a picture of it for reference.

Jul 18, 2014 | Heating & Cooling

1 Answer

My heil n9mp2 isnt working just hums

is the flame igniting and then cutting off? on a gas furnace, the induction fan motor(draft motor) should start first (if the furnace is so equipped), then the flame, then the blower. if you have an induction motor (flue gas exhaust mmotor) this may be your problem (the induction motor isn't starting), if your unit doesn't have one, have you checked to see that you have gas? finally, the capacitor on the blower motor may be causing the motor not to start.

Jan 06, 2013 | Heating & Cooling

1 Answer

Rheem classic 80 fan motor on furnace hums will not turn on

Have you checked the capacitor? Try spinning the blower wheel by hand, if this gets the motor going you have a bad capacitor. If not, the motor will need to be replaced.

Nov 16, 2012 | Rheem Prestige 14 Series 2.0 ton 14 SEER...

1 Answer

Outside unit comes on. inside unit stays humming

You could have a bad motor or motor capacitor. The capacitor is the can with two or three wires coming from it. Shut off the power to the unit and remove the blower panel. Check to see if the motor turns free and is not noisy. Next see if the motor is hot after it has been humming; if it is it may just a new capacitor and they are cheap and can be picked up at ac supply house. I'm going off the info you provided. humming can sometimes just be the transformer and you could have a blower relay issue. I have provided the most common issue that I find with this description.

Jul 31, 2012 | Goodman Heating & Cooling

2 Answers

Rudd model nu. VACC-024JAS. outside unit will not work. A little constant humming. Motor appears to be ok

the constant hum is probably the contactor which may be pulled in on the 24volts check your capacitor that is most common to go out its a canister either oval or round it has wires going in to it please give me a vote and rating

Sep 22, 2010 | Ruud UAMB042 Air Conditioner

1 Answer

I have a FEMA camper and my rooftop A/C makes a humming sound with no air flow. what do you think ?


It seems like the blower motorr is not kicking in. Turn breaker OFF, remove the grill, check that electrical connections are nice and tight, and turn breaker back ON, start unit and see if evaporator coil is gatting cold, if so, Turn Breaker off, remove blower motor capacitor and test it, if capacitor OK, blower motor needs to be replaced.

Good Luck!! Rate this Post!!

Aug 11, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

When I press the on button, I hear a constant humming, no turning of the fan.

Shut the power off to the unit, spin the fan blade to see if it spins freely. If it doesn't spin freely, (there appears to be a little drag when you spin it),the bearings are bad, if it does spin freely, then try moving the motor shaft from side to side if there’s any play in the shaft side to side then the bearings are worn and motor needs replaced. Then, check the capacitor, if it’s bulging even slightly, the capacitor is bad and needs replaced. Most of the time people replace the capacitor if motor seems ok. If capacitor is ok, turn power on to see if the motor is getting the proper voltage, if it is and not trying to run, then the windings are probably open, the motor's bad and needs replaced.

Aug 23, 2009 | Dehumidifiers

1 Answer

Goodman GMP075 Problem

check the mfds of the capacitor.if its ok you need a blower motor.

Aug 09, 2008 | Heating & Cooling

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