Question about Makita MAC5200 Electric Powered Air Compressors

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Compressor starts hard

When air pressure drops and compressor kicks on,it starts slow and then gets going.

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Sounds like a voltage drop issue, Use a heavier gauge cord, or a shorter one , closer to the source.

Posted on May 18, 2009

  • Bruce Volkers
    Bruce Volkers May 26, 2009

    Was this helpful?

  • John Griffin Mar 07, 2013

    Very helpful, I was thinking that was the unloader, but it sure was line loss, good call.



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1 Answer

Load and unload issues

  • The 10 deg pressure band you are asking for is too narrow for the pressure switch. You are going to have to choose to have it kick off at a higher pressure or turn on at a lower pressure.
  • You could install a more precise pressure switch.
  • What are you doing that you set a 10 deg pressure band ?

Nov 12, 2013 | Air Tools & Compressors

1 Answer

2000 Buick Centry AC R134 pressure ok Compressor kicks in on demand, no cool air?

If you have a set of manifold gauges, check the pressure prior to starting the engine and see if you are somewhere between 80 and 100 psi. If so, start engine and then turn on A/C to 'max'. Hi side may rise to as high as 350psi with the low side dropping to around 40psi. Feel the low pressure line going to the filter/dryer and see if it begins to get cold. If it does not get cold, trouble shoot your compressor and expansion valve. If it does get cold, your cooling system is working and you need to focus your attention on the blend door mechanism under the dash. These cars use a 'stepper' type digital motor to close off or open the pathway in the airbox to direct the flow of air through the heater core, or A/C evaporator core depending on if you are wanting hot air or cold air respectively. In either case, if the blend door is not properly actuated, you will not receive any cold air into the cabin. The actuator is available at: for about $30.
Good luck!

Aug 31, 2012 | 2000 CENTURY A/C Compressor a1z29069...

1 Answer

When compressor gets to proper pressure and starts to kick down, it stalls

when the pressure reaches its max (abt 130psi)the unloader valve
slows down the speed of the compressor and relieves backpressure
on the pump.The carb has two idle speed screws. one is high speed
to build pressure, and the other is a low spd for when the pump doesn't have
a load. this screw is on the carb between the carb and the rocker
arm cover.turn it clockwise to increase the slow spd idle until it just stays

Nov 20, 2011 | Dewalt D55270 gas powered air compressors

1 Answer

Porter cable 3hp air compressor 130 psi no model number visible compressor runs builds up pressure and kicks off when the pressure is builded up in the tank// the compressor will not kick kick back on when...

Check to see if the switch will kick in if the pressure is released from the hose going to activate it...if so then the problem is the air being trapped between a check valve and the switch in the hose...
I think that is your problem...
There should be a way for the air pressure to change and represent the tank air pressure accurately....
The different compressors all have different ways of checking the air and then allowing it to release as the the tank pressure decreases..

There is a small hole there somewhere that is clogged with dirt and or oil...find that and clean it and you are in business again...


Jul 27, 2011 | Porter Cable Air Tools & Compressors

2 Answers

The compressor runs fine and shuts off when the pressure builds up to the appropriate level. When I use air, it tries to kick on to build pressure up again, but it's not able to get started and...

Check the circuit feeding power to the compressor. These conductors may be too small. Conductors have a degree of resistance. Resistance consumes power. The power conductors consume is dissipated as heat and present a voltage drop to the equipment being served. Length and size of the conductors determine power loss.
An electric motor momentarily needs up to six times the running power and this power loss is squared ( PxP) at start up.
The bottom line: Shorten the length of the conductors or increase the conductor size to avoid voltage drop.

Aug 10, 2017 | Craftsman 33 gal Air Compressor 6 hp...

1 Answer

My air compressor is sometimes slow to start and it will throw out the breaker on the compressor when it runs it runs great. when it builds up air and shuts off it will not come back on when the pressure...

Two things to check... the wiring to the compressor may not be a heavy enough gauge to support the current draw...

The start capacitor on the motor may be going bad...


May 14, 2011 | Northern Industrial Tools Northern...

1 Answer

I have an Ingersoll Rand T30 10 HP compressor that runs OK and will bulid up 150 psi without any problems. But when the pressure drops enough to kick the pressure switch, the motor won't start. just tries...

When the compressor comes up to pressure and kicks off, you should normally hear a gasp of air escaping. That gasp is the release of pressure from the compressor itself - not the tank, and it is supposed to get released so that the compressor can restart without being preloaded with compressed air. My guess is that the gasp is not happening. It is probably some debris or a gummy mechanism. The mechanism is supposed to be triggered by the same mechanism that shuts off the motor.

Aug 30, 2010 | Ingersoll Rand Type 30 Reciprocating Air...

1 Answer

Air compressor motor stalls under pressure

this sounds like a bad pressure switch.if the unit is not shutting off at the same pressure each time this would be the cause.2 if the pressure is not unloading the air pressure on the compressor side of the unit it will cause the unit to struggle when it starts a cycle because the piston is under a load .how this works is say the unit starts from 0 psi when it get to the desired pressure you have it set on the unit kicks off . the other adjustment most units have on them is what pressure to cycle back when the unit reaches say 100 pounds ,it kicks off and bleeds the air off the compressor side so when it starts back up it wont start up with pressure on the piston.

Jun 18, 2009 | Air Tools & Compressors

1 Answer

New ingersoll compressor starts slow pops reset

sounds like your non return valve is passing
recheck your readings with an empty reciever

Nov 12, 2008 | Ingersoll Rand 231C-KS - 1/2" Super Duty...

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