|
Problem |
Possible Cause |
Solution |
|
Valve will not open
|
No power to timer or solenoids, or faulty steps in timer
|
Check wiring, may need new timer board
|
|
Solenoid coil continuity
|
Replace coil
|
|
Buildup of debris (oil, dirt, etc.) in solenoid plunger sleeve
|
Clean or replace plunger
|
|
Tubing between solenoid and pulse valve blocked
|
Unplug lines- replace if needed
|
|
Tubing ID too small (<4mm)
or tubing too long (> 2.5m)
|
Install correct tubing
|
|
Solenoid plunger worn
|
Rebuild w/ Solenoid Repair Kit
|
|
Holes in diaphragm
|
Replace diaphragm
|
|
Blocked exhaust ports
|
Remove blockage
|
|
Valve will not close
(leaks air)
|
Solenoid leaks air
|
Rebuild or replace solenoid
|
|
Tubing between solenoid and pulse valve leaks
|
Replace tubing and/or connectors
|
|
Solenoid energized continuously
|
Check power- replace timer board
|
|
Insufficient air supply
|
Check compressor supply lines, and the header is properly sized
|
|
Blocked bleedports in pulse valve housing
|
Lightly tap housing near bleedport to release blockage or disassemble valve and clean out bleed port
|
|
Bad seal on diaphragm
|
Replace w/ diaphragm kit
|
|
Broken diaphragm spring
|
Replace w/ diaphragm kit
|
