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 Senco PC1010 1/2 HP Electric Air Compressor Parts

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 Fig # Img Part Name Availability Price
3B11DC02A
Exhaust Valve Assembly
Exhaust Valve Assembly
Part #: 3B11DC02A
In stock
16 available
 $11.09
Add To Cart
3201068
Cylinder
Cylinder
Part #: 3201068
In stock
8 available
 $10.05
Add To Cart
3B34DC02
Rod Assembly
Rod Assembly
Part #: 3B34DC02
In stock
7 available
 $37.29
Add To Cart
2E2505A
Circuit Breaker
Circuit Breaker
Part #: 2E2505A
In stock
2 available
 $7.67
Add To Cart
2Y30QJ03
Air Filter Set
Air Filter Set
Part #: 2Y30QJ03
In stock
3 available
 $3.99
Add To Cart
2E27010F250V
10 Uf Condensor
10 Uf Condensor
Part #: 2E27010F250V
In stock
7 available
 $8.46
Add To Cart
2406018
Pressure Relief Valve
Pressure Relief Valve
Part #: 2406018
In stock
1 available
 $10.76
Add To Cart
PC0057
Pressure Gauge
Pressure Gauge
Part #: PC0057
In stock
8 available
 $10.86
Add To Cart
2408008RN
Regulator
Regulator
Part #: 2408008RNX
In stock
11 available
 $14.16
Add To Cart
PC0503
Quick Coupler
Quick Coupler Obsolete - Not Available
Part #: PC0503
Discontinued
N/A
2Y30QJ05
Unloading Tube Set
Unloading Tube Set
Part #: 2Y30QJ05
In stock
7 available
 $12.71
Add To Cart
3B202190
Discharge Tube
Discharge Tube
Part #: 3B202190
In stock
2 available
 $4.88
Add To Cart
2E21045TB
Pressure Switch
Pressure Switch
Part #: 2E21025TB
In stock
4 available
 $23.05
Add To Cart
2414033A
Check Valve
Check Valve
Part #: 2414033A
In stock
19 available
 $8.74
Add To Cart
2405011
Drain Valve
Drain Valve
Part #: 2405011
In stock
7 available
 $3.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
2433005D
Tank Feet
Tank Feet
Part #: 2433011D
In stock
25+ available
 $2.99
Add To Cart

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Compressor Parts

Repair Guides
Quick Fix: How to Replace the Valve Plate on an Air Compressor

Keep the pressure constant on your pressure washer by replacing the valve plate on your air compressor.

How to Maintain an Air Compressor

This video will show you the steps to service and maintain your air compressor at home.

Discussion
Discussion for the Senco PC1010 1/2 HP Electric Air Compressor

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kosmo
Question: Pc1010

kosmo

my pc1010 reaches 100lbs and goes no further. It won't turn off automatically. Which part needs replacing?
WJA
Reply: Pc1010

WJA

Hello kosmo,

It sounds like you have blow by. Air is escaping in between the 3B34DC02 Rod Assembly and the 3201068 Cylinder. You will need to check both of those items for wear and scarring.

-WJA
1581816
Question: Senco Pc1010 Regulator

1581816

How do I replace the regulator on my PC1010. The knob hits the tank and won't allow me to tighten it. It is a puzzle , not knowing which part to attach or how
dt5555dt
Reply: Senco Pc1010 Regulator

dt5555dt

I have the same problem and would like to know the answer.
1562415
Question: Senco Compressor Charge

1562415

Senco PC1010: My compressor will not build more than 30 lbs. of pressure. I checked the unloading tube and there is air coming through. Does anybody have any ideas what could be the problem? Starts fine, air discharges from pump to tank but can't get over the 30lbs.
WJA
Reply: Senco Compressor Charge

WJA

Hello 1562415,

You may be experiencing blow by in the cylinder. The way to correct this is to replace the 3B34DC02 Rod Assembly, and the 3201068 Cylinder.

-WJA
hungryhill
Question: Pc1010

hungryhill

Is it possible for someone with a pc1010 to pull the cover on the pressure switch (1 screw) and tell me the wiring set up? Thanks
WJA
Reply: Pc1010

WJA

Hello hungryhill,

If you look at the Senco 2E21025TB Pressure Switch. On the back it has two lower terminals marked as Line. This is where the the wires from the power cord are attached, it doesn't mater which terminal the cord leads are attached to. The Higher Terminals are where the motor leads are attached, again it doesn't matter which terminal you use for the two motor leads. Do not forget to use the ground leads.

-WJA
hungryhill
Question: Senco Pc1010 Pressure Switch

hungryhill

I just installed a new Senco comrpesser pressure switch and blew a breaker in the house. I wrote down the old configuration and that's how I wired it. Does anyone have a wiring diagram? I put power cord white on left, black on right. Motor wires were on top, white on left, black on right. Isn't this correct? If it doesn't work, what does it mean, hmm?
WJA
Reply: Senco Pc1010 Pressure Switch

WJA

Hello hungryhill,

It sounds like you wired it the way it's supposed to be. If it is not running at all, check the part number, 2E21025TB Circuit Breaker. If it is just humming you may need a new 2E27010F250V 10 Uf Condensor. If this is defective it could cause the house breaker to blow.

-WJA
ascensionits
Question: Emtpies When It Reaches Full And...

ascensionits

My senco pc1010 is about 1 year old. A couple weeks ago it started exhibiting and odd behavior. When it reaches 125 psi, it shuts off as usual. However, it immediately insists upon expelling all air from beneath the on/off switch -- there is a little that gets pushed when the off mechanism is triggered? any ideas why? and what to do? or replace?
ascensionits
Question: I Think This May Be Easy...

ascensionits

Have owned my Senco PC1010 for about a year. It has done very well, but has only been used maybe 50 times.

Recently, it will fill as normal and stop at the 125PSI mark. As soon as the auto-switch off clicks off, the air (all of it) is release from the mechanism beneath the switch where the little pin sticks out. I am thinking it is supposed to leak out a little and stop but do not recollect the exact way it behaved prior.

Just let me know which part to replace, and know that I appreciate your product and the work you put into it! :o)
sparkycruiser
Question: Senco PC 1010 Compressor Will On...

sparkycruiser

After a few months of no use I can now only get a max of 25 psi out of my compressor.
Any ideas as to problem?
WJA
Reply: Senco PC 1010 Compressor Will On...

WJA

Hello sparkycruiser,

If it is not that old of a compressor. I would think you may have a defective 2408008RNX Regulator. If it had heavy use before you put it away. It could be a number of wear parts. Such as the 3B34DC02 Rod Assembly and the, 3201068 Cylinder. You would have to inspect these parts for wear.

-WJA
I suspect the regulator valve 2408008RN, but here goes. Tank builds full pressure, regulator valve hisses when knob nearly completely backed out. Regulator pressure gauge shows zero. No pressure past regulator valve. Checked connectors and hose for obstructions, there are none.
WJA
Reply: Full Tank, Nothing Past Regulato...

WJA

Hello 1202088,

I think your are correct in your thought regarding a defective 2408008RNX Regulator. Once you replace it your compressor problems should be a thing of the past.

-WJA
jstone
Question: Senco Pc1010 2E21025TB

jstone

Hello,
So, i just installed a new pressure switch and the compressor will not shut off automatically. when i shut down the compressor via the on/off switch air leaks out of the conection between the pressure unit and unloading tube set (it looks to be some type on needle valve). Does the pressure valve need to be adjusted? Do i have a problem with another part that is causing the problem? Thanks for the help.
jpo
Question: PC 1010

jpo

PC 1010 won't build pressure over 30 lbs keeps running and gets very hot
Tinkerdave
Reply: PC 1010

Tinkerdave

Hi jpo,
Remove the 3B11DC02A Exhaust Valve Assembly and you should see a broken reed valve or blown head gasket and cylinder ring.Hope that helps.Good luck.
Tinker
Macauboy
Question: Senco PC0967 Repair

Macauboy

I have compressor that will run at first and charge to full pressure. As the pressure is reduced and the motor runs again it runs at a very low speed and trips the circuit breaker. Bypassed the pressure switch and it did not fix the problem. Ideas?
WJA
Reply: Senco PC0967 Repair

WJA

Hello Macauboy,

You might try replacing your 2414033A check valve. It could be causing your problems.

-WJA
brownie
Question: Air Leak

brownie

I have a PC1010 that I have hardly used. It is leaking air around the motor and the Motor thermal overload cover. It will pump up to around 75 psi and then just keep running. What can i do to fix this.
1104666
Question: Senco PC1010

1104666

What is the trick to rebuilding the pressure switch? It had a leak around the gasket so I took it apart and now it does not want to go back together.
WJA
Reply: Senco PC1010

WJA

Hello 1104666,

This is the first time I've had a question on rebuilding the 2E21025TB pressure switch, since there are no internal parts available for it most people order a complete switch assembly.

Good luck, I hope you can repair it,
-WJA
James_M
Reply: Senco PC1010

James_M

It is an absolute BEAR to put back together, spring tension is enormous. If you can find a suitable rubber membrane to make a new diaphragm from, it can be done. assemble it as best you can and start all 4 screws. right before you can tighten it up, push the flat piece nearest the cord entrance into place with a flat screwdriver and hold until you get it all tightened up (there is a small cutout there for that purpose. I'm a miser like no other, but a new switch is definitely the EASIEST method, but a rebuild can be done with Job-like patience and strong hands. Took me about an hour total.
DaveZ
Question: Unloading Valve

DaveZ

Where the Unloading Tube Set connects to the Pressure Regulator is what I believe is the Unloading Valve. It is not shown in the diagram or parts list. Is it available or does it come with the Pressure Regulator?
WJA
Reply: Unloading Valve

WJA

Hello DaveZ,

If I'm not mistaken, I think the item your looking for is the part number, 2414033A check valve. I hope I'm correct.

-WJA
Shawnc
Question: No Pressure

Shawnc

I love my 1010 and it just stopped building pressure the motor runs and air goes into the tank but after about 2 pounds it stops building could this be a faulty check valve or do I need a new piston assembly?
Tinkerdave
Reply: No Pressure

Tinkerdave

Hi shawnc,
Remove the cylinder head and check your reed valve and piston ring .If any of these are worn or damaged you will need to replace 3B11DC02A Exhaust Valve Assembly,3201068
Cylinder and 3B34DC02 Rod Assembly.The reason being is that on small oil less compressors these are high ware areas and by replacing all of this you do a clean repair on the pump..Before you remove the cylinder you could inspect the check valve but bad check valves will normally allow more pressure to build up then 2 pounds.Hope that helps.Good luck.
Tinker
jrizack
Question: Senco Pc 1010

jrizack

wiring diagram for pressure regulator
ralva
Question: Pressure Switch

ralva

1) air compressor hits the high pressure cut - out(approx 115 psi) and the motor stops air is released through the pressure switch. When the pressure falls to 80 psi the motor starts and builds pressure agin until it reaches the cut-out. This process repeats endlessly.
2) When the operating switch is turned to the off position, the motor turns off and all pressure in the tank is released through the pressure switch.
wrd
Reply: Pressure Switch

wrd

It sounds like you have a small leak somewhere. The compressor is building up to full pressure, then it leaks off to minimum pressure and restarts. How about a leaking check valve?
fancyboxy