What to do if my Graco Paint Sprayer reactor does not operate?
If your Graco Paint Sprayer reactor isn't operating, first, plug in the power cord and ensure the main power is turned ON. Also, check if the circuit breakers are ON.
What to do if my Graco Paint Sprayer motor does not operate?
If your Graco Paint Sprayer motor isn't working, begin by checking the connections at the motor control board. Then, check and reset the breaker (CB5). Inspect the brushes; if they're worn (less than 0.7 in or 17 mm), replace them. Also, check the brush springs for any misalignment or breakage and realign or replace them as needed. Ensure the brushes or springs aren't binding in the brush holder; clean the holder and align the brush leads. If none of these steps work, the armature might be shorted, requiring motor replacement. Inspect the motor commutator for burn spots or damage, and if possible, have a motor shop resurface it. Lastly, a damaged motor control board can also cause this issue, so consider replacing it.
Why is there no pressure display on my Graco REACTOR E-20 Paint Sprayer?
If there's no pressure display on your Graco Paint Sprayer, start by checking the display cable connections. If that doesn't work, the motor control board might have failed; open the cabinet and see if the board LED is lit. If not, consider replacing the board. Ensure the power supply meets the requirements and check all power cable connections. In some cases, the display board itself could be defective and need replacement. Also, check to see if the circuit breaker tripped and reset it if necessary.
How to troubleshoot no heat in A or B zones in Graco REACTOR E-20 Paint Sprayer?
If you're experiencing no heat in the A or B zones of your Graco Paint Sprayer, first, reset the circuit breakers CB3 or CB4. Ensure the heat hasn't been turned off by pressing the A or B zone keys. Check the temperature displays for a diagnostic code. The heater itself may be defective and need replacement; check its resistance. Also, inspect connectors and wire nuts for looseness. Finally, a failed temperature control board could be the cause; check if the board LED is blinking and replace the board if necessary.
Why is the display erratic on my Graco Paint Sprayer?
If your Graco Paint Sprayer display is erratic, turning on and off, the cable may not be grounded properly. Ground the cable. Also, if you're using an extension cable, make sure it doesn't exceed 100 ft (30.5 m).
Why is there no temperature display on my Graco Paint Sprayer?
If there's no temperature display on your Graco Paint Sprayer, start by checking the display cable connections. If the connections are good, the temperature control board might have failed; check if the board LED is blinking and ensure it has power. Also, check that the power supply meets the requirements. Loose power cables inside the display could also be the cause, so check those connections as well. If none of these steps resolve the issue, the display board itself may be defective and need replacement.
Why is there low heat in A or B zones in my Graco REACTOR E-20?
If your Graco Paint Sprayer has low heat in the A or B zones, check the A and B temperature setpoints and increase them if necessary. High flow can also cause this; try using a smaller mix chamber or decreasing the pressure. The heater might be defective and need replacement; check its resistance. Inspect connectors and wire nuts for looseness. Low voltage can also be a factor, so ensure the power supply meets the requirements. The temperature control board may be overheating; check the fan operation, ensure the door is closed, and verify that the cooling holes are not clogged. Lastly, if the fluid is too cold, preheat it.
Why is there no hose heat in my Graco Paint Sprayer?
If your Graco Paint Sprayer has no hose heat, check for loose hose electrical connections and repair as needed. Also, reset breakers (CB1 or CB2). Make sure the hose zone is turned on by pressing the zone key. Verify that the A and B temperature setpoints aren't too low and increase them if necessary. A failed temperature control board could also be the cause; check if the board LED is blinking and replace the board if necessary. If you have a 380 V system, check if the In-rush Current Limiter contactor is closing when the hose heat is turned on; if not, check fuse item 120614 and replace if blown, or move to transformer checks.
What to do if the fan is not working on my Graco REACTOR E-20?
If your Graco Paint Sprayer fan isn't working, start by checking and replacing the blown fuse. Then, check for any loose wires. If neither of those solutions works, the fan itself may be defective and need replacement.
Why display buttons do not work properly on my Graco REACTOR E-20 Paint Sprayer?
If the display buttons on your Graco Paint Sprayer aren't working correctly, and you can't exit an operation, it could be due to a broken membrane switch, which would need replacement. Alternatively, the ribbon cable might be disconnected or broken, so try connecting or replacing it.
Lists specifications for E-XP Series models, including voltage, amps, and pressure ratings.
Explains the meaning of warning symbols used in the manual.
Explains the meaning of caution symbols used in the manual.
Explains the meaning of note symbols used in the manual.
Lists the manuals that are shipped with the Reactor Proportioner.
Details risks and precautions associated with high-pressure fluid injection.
Outlines hazards related to flammable solvents, fumes, and electrical components.
Highlights dangers and consequences of improper equipment use and modifications.
Warns about the risk of burns from heated fluid and equipment surfaces.
Addresses hazards from exposure to toxic fluids or fumes and handling procedures.
Specifies required PPE for safe operation and servicing of the equipment.
Troubleshooting steps for the E01 error code indicating high fluid temperature.
Troubleshooting steps for the E02 error code related to high hose current.
Troubleshooting steps for the E03 error code indicating no hose current.
Steps to diagnose and fix E04 error for unconnected sensors or thermocouples.
Troubleshooting for the E05 error code indicating board overtemperature and board shutdown.
Describes motor control alarms, their function, and how to clear them.
Explains motor control warnings, their behavior, and clearing procedures.
Troubleshooting steps for the E21 error code related to missing component A transducer.
Troubleshooting steps for the E22 error code related to missing component B transducer.
Diagnostic steps for the E23 error code indicating high system pressure.
Troubleshooting the E24 error code for pressure differences between components.
Diagnosing and resolving the E25 error for high input line voltage.
Diagnosing and resolving the E26 error for low input line voltage.
Troubleshooting steps for the E27 error indicating high motor temperature.
Steps to diagnose and resolve the E28 error for high motor current.
Troubleshooting the E29 error for motor brush wear.
Diagnosing the E30 error for temporary communication loss between components.
Troubleshooting steps for the E99 error indicating a complete loss of communication.
Step-by-step instructions for safely removing the pump from the Reactor unit.
Detailed guide for correctly installing the pump assembly onto the Reactor.
Instructions for removing and installing the drive housing assembly.
Procedure for removing and installing motor brushes, including inspection and replacement.
Guide for testing, replacing, and troubleshooting circuit breaker modules.
Steps for removing and installing the electric motor, including safety precautions.
Instructions for replacing the motor control board and setting DIP switches.
Procedure for replacing pressure transducers, including testing and connection checks.
Steps for removing and installing the fan, including fuse checks.
Guide for replacing the temperature control board and understanding its LEDs.
Instructions for testing and replacing the heater element.
Procedure for testing and replacing the thermocouple and sensor housing.
Steps to test and replace the overtemperature switch.
Procedure for checking hose connectors and FTS cables for continuity.
Guide for testing and replacing the Fluid Temperature Sensor (FTS).
Tests for hose continuity, transformer harness continuity, and current sensor continuity.
Procedure to check the primary circuit of the transformer.
Procedure to check the secondary circuit of the transformer and voltage readings.
Step-by-step guide to safely replace the transformer unit.
Instructions for replacing the display module and its components.
Procedure for removing and replacing the red stop button.
Diagram and part numbers for the main Reactor assembly.
List of parts that are common to all Reactor models.
Table detailing parts specific to different Reactor models based on part number.
General| Brand | Graco |
|---|---|
| Model | REACTOR E-20 |
| Category | Paint Sprayer |
| Language | English |
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