Model #919167241 Craftsman air compressor

  • Compressor
    3 Results
  • Pump Assy
    3 Results

Question and Answers

Q:

Air compressor stopped running.

A:

Thank you for your question.

• Check to make sure you have 120 volts AC power going to the air compressor.

• The power comes into the pressure switch and goes to the motor from there.

• Check that the pressure switch is working by doing an OHM meter reading through the power cord to in side the control box on the motor wire side.

•_REMOVE POWER_ to the Air compressor, open the pressure switch cover and check for continuity through the switch by putting one of the meter leads on one of the power plug terminal and checking the circuit to the motor side of the pressure switch on both the black and white wires.

• If you have a circuit on both those lines then the motor is bad.

�� If you do not have a circuit and the On/Auto/ Off is in the On position, the pressure switch is bad.

• If the motor runs but the pump does not run it may be the drive belt.

• If the drive belt is broken the part number for the belt is: AC-0815.

• If the Pressure switch is bad the part number is: Z-D27226.

• If it is the motor it is un-economical to repair.

You can order these parts from Sears Parts Direct .

If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations: Sears Home Services .

I hope this will help.

Thank you for using Manage My Life.

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Sam A -
Sears Technician
September 07, 2010
Q:

Compressor not compressing

A:

If you could not find any leaks on the compressor I would suspect a part failure insideof the compressor head. Disconnect the power to the air compressor and remove the plastic cover around the motor and compressor.

Before you take the compressor apart, listen and feel for air leaks again. Check to see if air is coming back out of the intake filter. If air is coming back out of the intake filter, something is wrong inside the cylinder.

Turn the motor shaft by hand and be sure the piston goes up and down. If the piston is ok remove the 4 screws holding the head on top of the cylinder. Remove the head. Directly under the head is the pressure plate. The pressure plate has reeds on it that direct the air into the discharge line and keep the air from going back through the intake side of the compressor. Check the reeds for warping or breaking. If the reeds are damaged, you must replace the pressure plate. Make note of how the pressure plate sets and the o-rings that seal around it.

Remove the pressure plate and inspect the sleeve inside the cylinder. Look for scratches or cuts in the sleeve. Make note of the piston and the rubber o-ring around it. If the o-ring is worn of broken the air goes back through the intake filter and no pressure is built. If you have to replace the o-ring, replace the piston and sleeve also.

I priced all of the parts the compressor may need and they total about $45.00. I would recommend replacing the following parts. KK-4964 ROD KIT, SSG-8169 O-RING, Z-D24819 GASKET, and N017592 VALVE PLT. I have provided you with an image below with the parts I recommend replacing boxed in red.

Here is a link to order any parts you need. Sears Parts Direct .

If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations: Sears Home Services .

Read More
Mark T -
Sears Technician
July 21, 2010

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