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We reserve the right to make any alterations which may be due to any technical improvements
Printed in the USA
11
Part No. 70-6856 (Rev. A)
TROUBLESHOOTING CHART
SERVICE AND MAINTENANCE CHART
Date
Problem
Technician
Notes
Problem
Possible Cause(s)
Possible Solution(s)
1 . System will not start
A . No/poor electrical connection/
voltage
A . Confirm proper electrical connection and voltage
B . System pressure not below cut in
(ON) pressure
B . Verify cut in (ON) pressure
C . Breaker tripped
C . Confirm proper breaker size is used and not tripped
D . Voltage is too low
D . Check system voltage while it is runniing . Verify voltage is
above the minimum of 110 volts
E . Plugged inlet filter
E . Remove filter and clean or replace as necessary
F . Start up unloader is not functioning F . Verify the unloader is purging on start up . If not, replace
start up unloader
G . Unit is overheated
G . Verify voltage . Relocate system installation
H . Check valve leaking
H . Clean or replace the check valve
I . Loose wiring
I . Verify all wiring is tight
J . Switch NOT in RUN mode
J . Put the pressure switch into RUN mode by pressing the ON/
OFF button
2 . Unit will not shut off
A . System pressure is below cut out
(off) pressure
A . Verify the cut out (off) pressure is correct
B . Plugged inlet filter
B . Remove filter and replace as necessary
C . Sprinkler system leaks
C . Identify and repair any system leaks
3 . Excessive noise
A . Compressor cup worn
A . Install a service kit on the compressor
B . Leaking hose connection
B . Tighten hose connectionl . Verify no other leaks
C . Vibration
C . Confirm the riser clamps are tight
