Part Location Diagram of 2E21025TB Senco Pressure Switch
See part 2E21045TB in the diagram
( Grid squares measure 1x1 inch )

Pressure Switch 2E21025TB

Manufactured by:
Senco
ERP Number:
ERP11853302
Part Number:
2E21025TB
Original Equipment Manufacturer ?
  Works with your model  PC1010!
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

30 - 60 mins 

(11 rated repairs) ?
  Works with your model   PC1010!

Product Description

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This is a Genuine Manufacturer Approved replacement part designed to work with Senco Air Compressor. The pressure switch tells your compressor when to stop and when to start. There are multiple reasons a Pressure Switch could be leaking air. If it is leaking air the Pressure Switch should be replaced for a compressor to operate properly and safely.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Senco
This part works with the following products:
  • Compressor

Customer Part Reviews

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4.8
Average Rating (out of 5):
★★★★★
★★★★★
(5 Reviews)
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Questions & Answers

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Builds pressure to 55lbs keep running.But builds no more pressure?
Tom For model number PC1010 - March 9, 2023

Hi Tom, Thank you for your question. If your air compressor does not build pressure past 55lbs, the issue may be with the reed or check valve, but there are some parts that you will need to check to see which one is causing the issue. We recommend checking the exhaust valve assembly, the regulator, the pressure switch and the rod assembly. We have included a link from our website that you may reference on how to check these parts. Once you have determined the part you need, please call customer service. We look forward to hearing from you!

eReplacementParts Team
March 9, 2023

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

A Bit Difficult 

30 - 60 mins 

(11 rated repairs) ?
  • 1
  • 2
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Compressor will turn on and run, build up pressure but won\'t shut off unless you manually turn off

Michael from Tulare, California

20 of 20 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench (Adjustable)
Parts Used:
2E21025TB
Make sure it\'s not plugged into the outlet! Unscrew air gauges, couplings anything on pressure switch ports, up open switch disconnect wire to power cord, and motor and air supply line to tank unthread pressure switch from compressor then just reverse what you just did remember this is air so use pipe thread sealant and don\'t over tight en anything it will break now I have a unfair advantage on tool maintenance I ran a tool repair facility for several years so now that I\'m in construction repairs are easy and less costly for me have fun and if you don\'t have a great short term memory take pictures no shame in doing that it beats frying a motor cause you didn\'t remember how the wires went
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Leaking

gerry from cedar park, Texas

8 of 8 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers, Wrench set
Parts Used:
2E21025TB
Take a picture of all of the parts that are connected to the old pressure switch. Then remove them. Open it up and disconnect the wires and make note were they go. Remove the old switch. Install the new switch, connect the wires, then place all of the parts that were on the old one to the new one. Don\'t forget to use plumbers tape at all the connections.
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Replaced a bad pressure switch

james from wyoming, Michigan

4 of 4 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Wrench set
Parts Used:
2E21025TB
Remove all the items off the old pressure switch that are not included with the new one. Remove the cover and take note where the wires are located on the old switch. Install new switch, remove the cover and connect the wires. Then replace all of the other parts that were taken off
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Compressor loosing air from pressure switch and would not turn off.

Marvin from ARCADIA, California

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench set
Parts Used:
2E21025TB
Replaced the pressure switch.
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Unit would fill with air (120psi) then dump, and repeat the process

george from tuolumne, California

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench set
Parts Used:
2E21025TB
First order from ReplacementParts.com, and install the new (exact fit) pressure switch, it\'s really that easy. Unit performance is as new. Great to have ReplacementParts.com ,where you can get what you need to fix your tools. Great company.
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leaking air when off

Conrad from lawndale, California

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Wrench (Adjustable), Wrench set
Parts Used:
2E21025TB
replaced check valve. this is threaded in the compressor tank.
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Pressure switch wouldnÆt shut off

Richard from WARWICK, Rhode Island

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench (Adjustable), Wrench set
Parts Used:
2E21025TB
Remove gauge and motor Cord and power extension cord 2 remove switch 3 remove plug and pressure relief switch and airline from motor Hold the small fitting with adjustable wrench or pliers so you donÆt break it off the tank 4 clean all threats from parts removed 5 Re-tape all threads Re-install plugs and valves on new switch 6 re install switch IÆm tank make sure it is tight 7 reinstall cables instructions in the cover of switch and install pressure gauge 8 put some soapy water and a small container Apply to all threaded areas to check for air leaks with small brush or a Q-tip turn on compressor switch reapply while running 9 total time 45 minutes to an hour and I am very handy
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Check Valve corroded, Check Valve bad

Tim from GROVELAND, California

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers, Wrench (Adjustable), Wrench set
Parts Used:
2E21025TB, 2414033A
Removed the fittings, applied pipe seal to new fittings. Rewired new switch
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Pressure switch would not shut compressor off

Harry from Ogdensburg, New Jersey

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Wrench set
Parts Used:
2E21025TB
Part is an exact match. Remove accessories, remove switch, install switch, reinstall accessories. Done! Oh yeah, a little teflon tape on the pipe threads.
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Pressure switch relief fitting defective but not available without replacing entire switch unit

David from Chagrin Falls, Ohio

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench set
Parts Used:
2E21025TB
Removed cover from defective switch, disconnected power cord and leads to motor from switch. Removed the disconnect for air hose, the 1/8\" copper line from tank to pressure switch and additional fittings that needed to be installed on the new switch. Installing the replacement required either sealant or tape on threaded fittings and work ing in reverse of removal completed the repair. Compressor now functions as new.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP11853302
Manufacturer Part Number: 2E21025TB
Brand Model Number Description
Senco PC1010 Compressor - 1/2 HP Electric Air Compressor