C-Aire Compressors S261R-LD1-115PD User manual

1
PRODUCT NUMBERING SYSTEM
The compressor you have purchased is a combination of nearly 100 different components, all of which have been carefully
designed, engineered, and assembled to ensure a long, dependable, trouble-free life. The product has been fully tested at
the factory and has gone through quality-control inspection prior to shipping.
Like any mechanical piece of equipment, it is necessary to fully understand the proper use of its operation and application.
Misuse of this valuable and helpful air-power source may shorten its expected life as well as void the warranty of the entire
unit. We ask you take the time to read this manual to ensure the dependable service you can expect from your C-Aire compressor.
Failure to do so can cause serious injury and may void all warranties.
Please take special notice of the safety precautions and safety information contained in this manual. Compressed air, like
electricity, is a very helpful and necessary tool. However, compressed air can be extremely dangerous and harmful when it is
not understood or is misused.
INTRODUCTION
TABLE OF CONTENTS
B: Baseplate
H: Horizontal Tank
V: Vertical Tank
(Only on S500 and larger)
R: Riser Mount
MOUNTING OPTIONS
HD: Heavy Duty
(15,000+ hour life)
SD: Standard Duty
(5,000+ hour life)
LD: Light Duty
(2,000+ hour life)
SERIES
1: Single Phase
3: Three Phase
PHASE
115 (Available on S500
and smaller)
230 (208/230v)
460
VOLTAGE
P: Prewired Power Cord
S: Prewired Magnetic Starter
U: 30-40psi Adjustable Pressure
Switch
D: Digital Pressure Switch
(Also available in PU and SU)
ADDITIONAL OPTION
S261 LD PD
SD
300
HD
175
265
325
500
750
900
1300
1700
LD
260
261
R
Not all combinations are possible.
Product Numbering System
and Specifications............................. 1
Safety................................................ 2
Receiving and Inspection.................. 2
Installation........................................ 2
Electrical........................................... 5
Start-up ............................................ 6
Digital Pressure Switch Programming
and Instructions................................ 7
Maintenance ..................................... 8
Valves and Switches ......................... 8
Air Compressor Basics ...................... 8
Warranty............................................ 9
Parts Diagram................................. 10
Troubleshooting..................Back Cover
HP
SYSTEM CAPACITY
PRESSURE SWITCH
CFM
PUMP
CYLINDERS
VOLTS
PHASE
RUNNING AMPS
BREAKER SIZE
OUTLET
DIMENSIONS
WEIGHT
1
40 PSI 261 GALLONS
20 PSI 522 GALLONS
10 PSI 1200 GALLONS
ADJUSTABLE: 5-55PSI
FACTORY SET AT 10-20PSI
MINIMUM DIFFERENTIAL: 5PSI
3.68 @10PSI
2 CYLINDER, OIL FREE
CERAMIC COMPOSITE
115
1
7.5
15 AMP RECOMMENDED
3/4” NPT
27”x10.5”x7”
38 LBS.
SPECIFICATIONS:
INCLUDES MOUNTING
BRACKET AND 30”
STEEL BRAIDED
FLEX HOSE
SET PRESSURE IN SECONDS
Listings:
Pressure Switch: CSA Listed to UL 508 Standard (USA)
CSA Listed to C22.2 No. 14 Standard (Canada)
Compressor: CSA Listed to UL 1450–3rd Edition Standard (USA)
CSA Listed to C22.2 No. 68-92 Standard (Canada)

2
DEFINITIONS
DANGER: Indicates a hazardous situation that, if not avoided, will result in death or serious injury.
WARNING: Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION: Indicates a situation that will or could cause minor injury or property damage.
GENERAL PRECAUTIONS
Read the Owner’s Manual before operating.
DANGER:
Do not use compressed air for breathing air applications.
Beware of high voltage: disconnect lockout/tagout electric supply before servicing.
Ground compressor per codes.
WARNING:
Beware of high-pressure air: do not bypass, modify, or remove safety/relief valves.
Beware of hot surfaces: allow unit to cool before servicing.
Do not operate with safety guards removed.
CAUTION:
Never operate the compressor near flammable liquids or vapors.
Do not direct the air stream at body.
Drain tank air every day to decrease risk of bursting.
NOTE: Per UL 1450:46.17 C-Aire recommends a maximum of 70% duty cycle for its compressors.
Upon receipt, inspect the unit for damage and missing parts. If either is apparent, make notations on the delivery receipt,
before signing the receipt. Ask the carrier how to file a claim for shipping damages.
If concealed damage is discovered (after receiving the unit), notify the carrier within 15 days of receipt, in writing.
SELECTING A LOCATION:
C-Aire compressors are to be installed and operated in a clean, dry, well-lighted, and well-ventilated area. Mounts to risers
2.5”-4”, concrete or cinder block walls or studs on a drywall.
Provide at least 200 cubic feet of fresh air per 1 hp.
Ideal operating temperatures are between 32°F and 100°F.
Avoid excessively humid areas, as moisture may form in the pump, producing sludge and causing moving parts to wear
prematurely.
NOTE: The dry pipe/sprinkler system compressor is to be installed in accordance with the Standard for Installation of
Sprinkler Systems, NFPA 13.
SAFETY
RECEIVING AND INSPECTION
INSTALLATION
CAUTION: If temperatures consistently drop below 32° F, install the compressor in a heated area.
CAUTION: Never operate the compressor in temperatures below 20°F or above 104°F.
WARNING: A compressor should never be used in an area where toxic, corrosive, or volatile agents may be present.
MOUNTING THE COMPRESSOR
CAUTION: Remove the compressor from the shipping packaging before mounting.
CAUTION: Do not mount riser mount unit horizontally.
(INSTALLATION CONTINUED ON NEXT PAGE)

3
(INSTALLATION CONTINUED ON NEXT PAGE)
4. Install air filter assembly
CAUTION: If temperatures consistently drop below 32° F, install the compressor in a heated area.
CAUTION: Never operate the compressor in temperatures below 20°F or above 104°F.
WARNING: A compressor should never be used in an area where toxic, corrosive, or volatile agents may be present.
MOUNTING THE COMPRESSOR
CAUTION: Remove the compressor from the shipping packaging before mounting.
CAUTION: Do not mount riser mount unit horizontally.
1. Install mounting bracket on riser
2. Hang unit on mounting bracket
3. Bolt unit to mounting bracket
MOUNT TO RISER

4
(INSTALLATION CONTINUED ON NEXT PAGE)
C-Aire compressors are to be installed and operated in a clean, dry, well-lighted, and well-ventilated area.
MOUNT TO CINDER BLOCK/CONCRETE WALL
1. Hammer drill holes for
hollow wall anchor
4. Attach mounting bracket to wall
with bolt and washer into anchor
7. Slip bolt through unit to
mounting bracket
2. Put hollow wall anchor
into holes
5. Locate hangers on back of
unit
8. Tighten bolt to unit and
mounting bracket
3. Tap hollow wall anchor into
cinder block with hammer
6. Hang unit onto the mounting
bracket
9. Install air filter assembly

5
(ELECTRICAL CONTINUED ON NEXT PAGE)
INLET AND DISCHARGE PIPING
CAUTION: Do not operate unit without inlet-air filtration.
If the air is dirty, pipe the filter to a source of clean air.
Do not install piping with a diameter lower than that of the pump intake.
CAUTION: Do not use PVC plastic in the discharge line.
Use hand-welded or threaded steel or copper pipes and cast-iron fittings that are safe for the discharge pressure and
temperature.
WARNING: Compressor installation must be performed by a qualified electrician in accordance with the National
Electrical Code (NEC) or the Canadian Electrical Code (CEC), the National Electrical Safety Code (NESC)
OSHA code, and/or any local or state codes having precedence.
Be sure of proper wire sizing and that the circuit breaker and the distance from the breaker is within suggested range.
Confirm your electrical-supply voltage matches what is required for the motor.
WARNING: The compressor must be grounded. Grounding reduces the risk of electric shock. Certain C-Aire models
are equipped with a cord that has a grounding wire with a grounding plug. The plug must be plugged
into an outlet that is installed and grounded in accordance with all local codes and ordinances.
WARNING: Improper installation of the grounding plug will result in a risk of electric shock. When repair or
replacement of the cord or plug is required, do not connect the grounding wire to either flat-blade
terminal. The insulated wire with a green outer surface and yellow stripes is the grounding wire.
NOTE: The installation, electric motor, wiring, and all electrical controls must be in accordance with NFPA 70-1996 National
Electric Code, National Electric Safety Code, and state and local codes. Failure to abide by the national, state, and local
codes may result in physical harm and/or property damage.
DANGER: High voltage may cause personal injury or death. Disconnect and lockout/tagout, per OSHA regulation
1910.147, all electrical power supplies before opening the electrical enclosure or servicing.
DANGER: Never assume a compressor is safe to work on if it is not operating. It could restart at any time. Always
disconnect/lockout/tagout before servicing.
CAUTION: Dry pipe sprinkler compressor must be wired to a reliable power source to be compliant with NFPA 13.
ELECTRICAL
C-Aire compressors are to be installed and operated in a clean, dry, well-lighted, and well-ventilated area.
MOUNT TO DRYWALL
1. Attach 2x4s to studs in drywall
4. Slip bolt through unit to
mounting bracket
2. Attach mounting bracket to wall
with bolt and washer into anchor
5. Tighten bolt to unit and
mounting bracket
3. Hang unit onto the mounting
bracket
6. Install air filter assembly

6
(STARTUP CONTINUED ON NEXT PAGE)
WIRING DIAGRAM
PRESSURE SWITCH
UNLOADER
UNLOADER
WIRE TO
POWER
SOURCE
WIRE TO
POWER
SOURCE
WIRE
TO
MOTOR
WIRE
TO
MOTOR
GROUND BLOCK
GROUND BLOCK
PRESSURE
SWITCH
PRESSURE
SWITCH
NOTE: There is no need to “break-in” your compressor. It has been tested and run at the factory by qualified personnel.
When operating the compressor for the first time, do the following:
1. Perform an inspection of the compressor to ensure there are no obstructions that might interfere with moving parts.
2. Release any remaining tank pressure by slowly opening the manual drain valve.
3. Connect the compressor to the power source (the compressor will start).
START UP
DIGITAL PRESSURE SWITCH PROGRAMMING AND INSTRUCTIONS
When the air compressor is first powered on, PSI light is illuminated, press the “MODE button.
SCREEN DISPLAY/SETTING PRESSURE
Use these three buttons to set maximum and minimum pressure:
A. MODE B. UP ARROW C. DOWN ARROW
STEP 1:
Press the “MODE” button once, the number “1” will display on the screen. You can now set the maximum pressure you would
like using the “UP ARROW” button or “DOWN ARROW” button. (with precision to 0.1 psi). The maximum pressure is
displayed on the screen. The setting range is: 10-90psi.
STEP 2:
Press the “MODE” button again, the number “2” will display on the screen. You can now set the minimum pressure you
would like using the “UP ARROW” button or “DOWN ARROW” button. (with precision to 0.1 psi). The minimum pressure is
displayed on the screen. The setting range is: 5-85psi.
There is a 5° differential on the settings so if you would like to change maximum/minimum pressure settings, change the
low or minimum pressure setting first and then set the high or maximum pressure. Otherwise the 5° differential will not
allow you to change the pressure settings.
EXAMPLE:
The maximum pressure setting is set at 12psi and the minimum pressure is set at 7psi. You wish to change the maximum
pressure to 10 and minimum pressure to 5. Press the mode button until you see the minimum pressure of 7 on the screen.
Change the setting to 5 using “DOWN ARROW” button. Next press the “MODE” button once again to see the maximum
pressure of 12 on the screen. Use the “DOWN ARROW” button to change the setting to 10. If you try to set the maximum
pressure first the digital pressure switch will not allow you to change the number to 10 because that would cause the drop
to be below the 5° differential.
1. SCREEN DISPLAY/OPERATION
INLET AND DISCHARGE PIPING
CAUTION: Do not operate unit without inlet-air filtration.
If the air is dirty, pipe the filter to a source of clean air.
Do not install piping with a diameter lower than that of the pump intake.
CAUTION: Do not use PVC plastic in the discharge line.
Use hand-welded or threaded steel or copper pipes and cast-iron fittings that are safe for the discharge pressure and
temperature.
WARNING: Compressor installation must be performed by a qualified electrician in accordance with the National
Electrical Code (NEC) or the Canadian Electrical Code (CEC), the National Electrical Safety Code (NESC)
OSHA code, and/or any local or state codes having precedence.
Be sure of proper wire sizing and that the circuit breaker and the distance from the breaker is within suggested range.
Confirm your electrical-supply voltage matches what is required for the motor.
WARNING: The compressor must be grounded. Grounding reduces the risk of electric shock. Certain C-Aire models
are equipped with a cord that has a grounding wire with a grounding plug. The plug must be plugged
into an outlet that is installed and grounded in accordance with all local codes and ordinances.
WARNING: Improper installation of the grounding plug will result in a risk of electric shock. When repair or
replacement of the cord or plug is required, do not connect the grounding wire to either flat-blade
terminal. The insulated wire with a green outer surface and yellow stripes is the grounding wire.
NOTE:
The installation, electric motor, wiring, and all electrical controls must be in accordance with NFPA 70-1996 National
Electric Code, National Electric Safety Code, and state and local codes.
Failure to abide by the national, state, and local codes
may result in physical harm and/or property damage.
DANGER: High voltage may cause personal injury or death. Disconnect and lockout/tagout, per OSHA regulation
1910.147, all electrical power supplies before opening the electrical enclosure or servicing.
DANGER: Never assume a compressor
is safe to work on if it is
not operating. It could
restart at any time.
Always disconnect/
lockout/tagout
before servicing.
CAUTION: Dry pipe sprinkler
compressor must be
wired to a reliable
power source to be
compliant with
NFPA 13.
ELECTRICAL
RED
BLACK
WHITE
BROWN
BLACK
WHITE
BLACK
WHITE
BLACK
WHITE
WIRE
COLOR
CODE

7
When the air compressor is first powered on, PSI light is illuminated, press the “MODE button.
SCREEN DISPLAY/SETTING PRESSURE
Use these three buttons to set maximum and minimum pressure:
A. MODE B. UP ARROW C. DOWN ARROW
STEP 1:
Press the “MODE” button once, the number “1” will display on the screen. You can now set the
maximum pressure you would like using the “UP ARROW” button or “DOWN ARROW” button.
The maximum pressure is displayed on the screen. The setting range is: 10-55psi.
STEP 2:
Press the “MODE” button again, the number “2” will display on the screen. You can now set
the minimum pressure you would like using the “UP ARROW” button or “DOWN ARROW” button.
The minimum pressure is displayed on the screen. The setting range is: 5-50psi.
There is a 5psi differential on the settings so if you would like to change maximum/minimum
pressure settings, change the low or minimum pressure setting first and then set the high or
maximum pressure. Otherwise the 5psi differential will not allow you to change the pressure settings.
EXAMPLE:
The maximum pressure setting is set at 12psi and the minimum pressure is set at 7psi. If you wish to change the maximum pressure to
10 and minimum pressure to 5. Press the mode button until you see the number 2 and minimum pressure of 7 on the screen. Change
the setting to 5 using “DOWN ARROW” button. Next press the “MODE” button once again to see the number 1 and maximum pressure of
12 on the screen. Use the “DOWN ARROW” button to change the setting to 10. If you try to set the maximum pressure first the digital
pressure switch will not allow you to change the number to 10 because that would cause the drop to be below the 5psi differential.
THE COMPRESSOR WILL BEGIN RUNNING WITH YOUR PRESSURE SET RANGE.
When you have the maximum and minimum pressure set to numbers you want, you can lock the settings so they cannot be changed.
A. Press and hold for 5 seconds, both the “MODE” button and “MINIMUM PRESSURE”
button simultaneously.
B. The “SETTINGS LOCKED” button will light up.
C. The settings are now locked.
To unlock the maximum and minimum pressure settings so they can be changed.
A. Press and hold for 5 seconds, both the “MODE” button and “MINIMUM PRESSURE”
button simultaneously.
B. The “SETTINGS LOCKED” button will become unlit.
C. The settings are now unlocked.
D. Proceed with STEP 1 and STEP 2 above.
A. Press the “UP ARROW” button once. The running amps will display (the compressor
must be running to see the correct amps).
A. Press the “UP ARROW” button once. The volts will display.
1. SCREEN DISPLAY/OPERATION
DIGITAL PRESSURE SWITCH PROGRAMMING AND INSTRUCTIONS
2. LOCKING/UNLOCKING THE PRESSURE SETTINGS
3. DISPLAY RUNNING AMPS
4. DISPLAY VOLTS

8
Air Source
Digital Pressure Switch
Eliminates The Need
For Air Pressure
Maintenance Device
Dry Pipe Valve
System pressure varies
depending on size of system
Low Pressure
Water in system
Adjustable: 5-55psi
AIR COMPRESSOR BASICS
Best practices: Tank mounted, direct driven compressors Tank mounted = reserve supply of air
VALVES AND SWITCHES
NOTE: There is no need to “break-in” your compressor. It has been tested and run at the factory by qualified personnel.
When operating the compressor for the first time, do the following:
1. Perform an inspection of the compressor to ensure there are no obstructions that might interfere with moving parts.
2. Release any remaining tank pressure by slowly opening the manual drain valve.
3. Connect the compressor to the power source (the compressor will start).
WARNING: Before performing maintenance, release air pressure from the system and disconnect/lockout/tagout the
main power supply.
WEEKLY MAINTENANCE
Drain moisture from your air compressor’s tank WEEKLY!
CAUTION: Open the drain valve slowly to release the moisture, as pressure in the tank can cause the moisture
to expel at very high velocity.
Check for any unusual noises, vibrations, or permanent leaks from the unloader valve.
BIANNUAL MAINTENANCE
TURN OFF POWER, and check and tighten all electrical connections.
Change air-intake filter(s).
Check to make sure all bolts are tight.
START UP
MAINTENANCE

9
C-Aire Inc. warrants its compressors to be free from defects in material and workmanship subject to the following provisions:
STANDARD WARRANTY DURATION: 12 months from date of purchase.
WHAT THE WARRANTY COVERS DURING THE WARRANTY DURATION: All components on the compressor except
for those items listed in the section titled “What is excluded from warranty coverage”.
WHAT IS EXCLUDED FROM THE WARRANTY COVERAGE:
A) Air intake filters and compressor oil, which are maintenance items.
B) Failure due to improper installation, including absence of mounting pads, and insufficient power.
C) Oil leaks will be covered under warranty for a period of 60 days from purchase.
D) Freight damaged items. (REJECT THE SHIPMENT or note damage on Bill of Lading)
E) Any labor, freight or transportation charges that are not pre-approved by C-Aire.
F) Labor charges incidental to the installation, electrical connections, repair, service, adjustment, removal, or replacement.
G) Misuse or abuse.
H) C-AIRE HAS NO OBLIGATION UNDER THESE WARRANTIES OR OTHERWISE (REGARDLESS OF THE FORM OF ACTION) FOR
SPECIAL, INDIRECT, CONSEQUENTIAL OR INCIDENTAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOSS OF USE, LOST
PROFITS, LOST INCOME, WHETHER SUFFERED BY THE BUYER OR A THIRD PARTY.
HEAVY DUTY SERIES WARRANTY: C-Aire warrants its compressor pumps from the “Heavy Duty” Series (noted by the
“HD” in its part number) to be free from defects in material and workmanship for a period of 36 months from the date of
purchase. The 3 year warranty for “HD” units only covers the compressor pump. All other components are covered under the
“Standard Warranty Duration”, which is 12 months from date of purchase.
C-AIRE’S OBLIGATIONS: C-Aire will repair or replace, at C-Aire’s option, defective parts, pay reasonable labor costs of
replacing or repairing the defective part, and pay ground freight for the return of defective parts and shipment of the
replacement part(s). ALL LABOR AND FREIGHT MUST BE PRE-APPROVED AND ARRANGED BY C-AIRE.
PURCHASER’S OBLIGATION:
1) Properly install and start up the compressor using the checklist located at the back of this Owner’s Manual.
(Keep “Installation Checklist” for future reference.)
2) Ensure the compressor is sized properly for the application.
(the compressor should run no more than 30 minutes/day on average after initial system fill.)
3) Maintain proof of purchase and Installation Checklist.
WARRANTY CLAIMS: Please contact C-Aire at 1-800-762-2247 or 651-462-3440. Please have your completed
Installation Checklist available.
WARRANTY

10
Description
1
2
3
4
5
6
7
8
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10
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Description Description Description
Filter Cover
Filter Element
Filter Base
O Ring
Cylinder Head
Gasket
M4*8 Screw
Locking Block
Valve Plate
Valve Disc
Valve Plate
Washer
M4*8 Screw
O Ring
Cylinder
M6*16 Screw
Piston Ring
Connecting Rod
Bearing
Hexagon Socket Screw
Crankcase
Bushing
Capacitor
M4*160 Stud
ø4 Spring Washer
Protecting Cover
Self-tapping Screw
Fan Blade
ø14 Outside Spring
Crank Throw
Stator
Rotor
Bearing
ø15 Outside Spring
M4*10 Screw
1
1
1
4
12
2
12
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
4
4
2
4
2
2
2
1
1
2
2
2
1
ø5 Gasket
Hexagon Socket Screw
2
Pipe
Pressure Plate 2Capacitor Cover Connection BoxPlastic Cover 1
1
Power Cord Connection Box Cover
1
Metal Hose Bolt M4*12
1
Check Valve
1
Safety Valve 1 Terminal Screw
2
Strain Relief 1 Elbow
1
Drain Valve
2
Hex Screw
2
Washer
2
Round Bolt M8*10
2
Bolt M4*10
2
2
Flat Washer ø4
8
Flat Washer ø4
8
Flat Washer ø4
1
Nut
Wiring Terminal
Digital Pressure Switch
Solenoid Valve
Studs M4*16
Tank
Mounting Bracket
Mounting Plate
2
1
1
1
1
1
Vibration Dampener 4
Washer
Nut
4
4
ITEM
NO. QTY ITEM NO. ITEM NO. ITEM NO.
QTY QTY QTY
1
1
8
Air Compressor
Exploded Parts Diagram
S261R-LD1-115PD
ITEM NO. PART NO.
1RM 260R-0001
2RM 260R-0002
3RM 260R-0003
4RM 260R-0004
5RM 260R-0005
6RM 260R-0006
7RM 260R-0007
8RM 260R-0008
9RM 260R-0009
10 RM 260R-0010
11 RM 260R-0011
12 RM 260R-0012
13 RM 260R-0013
14 RM 260R-0014
15 RM 260R-0015
16 RM 260R-0016
17 RM 260R-0017
18 RM 260R-0018
19 RM 260R-0019
20 RM 260R-0020
21 RM 260R-0021
22 RM 260R-0022
23 RM 260R-0023
24 RM 260R-0024
25 RM 260R-0025
26 RM 260R-0026
27 RM 260R-0027
28 RM 260R-0028
29 RM 260R-0029
30 RM 260R-0030
31 RM 260R-0031
32 RM 260R-0032
33 RM 260R-0033
34 RM 260R-0034
35 RM 260R-0035
36 RM 260R-0036
37 RM 260R-0037
38 RM 260R-0038
39 RM 260R-0039
40 RM 260R-0040
41 RM 260R-0041
42 RM 260R-0042
43 RM 260R-0043
44 RM 260R-0044
45 RM 260R-0045
46 RM 260R-0046
50 RM 260R-0050
51 RM 260R-0051
52 RM 260R-0052
53 RM 260R-0053
54 RM 260R-0054
56 RM 260R-0056
57 RM 260R-0057
58 RM 260R-0058
61 RM 261R-0061
62 RM 261R-0062
63 RM 261R-0063
64 RM 261R-0064
65 RM 261R-0065
66 RM 261R-0066
67 RM 261R-0067
68 RM 261R-0068
69 RM 261R-0069
70 RM 261R-0070
71 RM 261R-0071
72 EL D0072
73 RM 261R-0073
74 RM 261R-0074
75 RM 261R-0075
76 RM 261R-0076

MODEL
SERIAL #
MFG. #
Make a permanent record of the Model and Serial Number of your compressor by filling in the fields above.
You’ll save time and expense by including this reference identification on replacement part orders.
380 West 1st Street, Dresser, WI 54009 // 800.762.2247//651.462.3440//www.c-aireinc.com
- No electrical power
- Loose wire connections
- Pressure switch not making contact
- Overload/stripped
- Connection rod bearings
- Wrist pins, wrist pin bearings
- Loose connecting rod nut
- Suction and discharge valves
- Check all fittings
- Make sure Petcock is closed
- Faulty Check Valve
- Dirty air filter
- Blown cylinder head gasket
- Worn or broken suction/discharge valves
- Air leaks
- Motor overload
- Malfunctioning or improperly adjusted
pressure switch or pilot valve
- High ambient temperature
- Wrong size fuses or breaker
- Wrong size wire
- Motor starting under load
- Loose wires
- Compressor is being overworked
- Variable overload on compressor started
needs adjusting
- Compressor will not operate
- Knock occurs while compressor
is loading
- Tank does not hold pressure when
compressor is turned off
- Tank pressure builds up slowly
- Reset mechanism cuts out repeatedly.
Fuses of proper size blow.
- Fuses or breaker trip
- Turn on power
- Tighten connection
- See pressure switch adjustment
- Reset overload
- Replace rod
- Replace complete piston assembly
- Tighten
- Replace Valves
- WARNING: Bleed tank. Disassemble Check
Valve assembly, clean or replace faulty parts.
- DANGER: Do not disassemble
Check Valve with air in tank
- Clean or replace filter element
- Install new gasket
- Install new valve
- Tighten joints
- Shut down immediately to
avoid damage
- Adjust or replace
- Provide ventilation
- Check fuse/breaker size
- Check volts/Amps
- Make sure pump is unloading when
compressor shuts off
- Check electrical connections
- Compressor should not run more than
6 out of 10 minutes on average
- Call C-Aire
- Poor ventilation
- Internal pump problem
- Overheating compressor - Relocate compressor
- Have unit serviced
- Condensation in the air receiver- Water in air receiver - Drain daily or install an Automatic Tank Drain
TROUBLESHOOTING