kaivac
cleaning
systems
TM
P a g e ǀ
2 3
www.kaivac.com
©2020 Kaivac, Inc. All Rights Reserved
4.2 t
RoUbLeshooting
4.0 Troubleshooting and Upkeep
CAUTION
:
Always unplug machine before lifting electric cover assembly.
AREA
PROBLEM
POSSIBLE CAUSE
SOLUTION
High Pressure
System
No water from pump
or low pressure
Out of water
Fill water tank
Gun nozzle plugged
Remove orifice with Allen wrench
and clean
Air in pump (vapor lock)
Use power prime technique
Gun orifice missing
Replace orifice
Water tank filter plugged
Clean tank and filter
In-line bowl filter plugged
Remove filter cover and clean
Bowl filter lid loose
Gently tighten bowl cover
Pressure hose damaged
Repair or replace
Quick disconnect leaking
Tighten or replace
Injector plugged
Remove safety cap from chemical
and blow small amounts of
compressed air into line
Pulse hose damaged
Repair or replace
Regulator failed
Replace
Hose kinked
Unkink and check for damage
Seals in pump need replaced
Remove and replace seals
Bad fan pattern or
pinpoint pattern on
gun
Debris in nozzle
Remove orifice with Allen wrench
and clean
Orifice damaged
Remove and replace
Chemical Injection
System
No chemical flow
Out of chemical
Refill chemical
Safety cap not secure
Check safety cap/tighten
Chemical valve “off”
Check on/off valve
Safety cap plugged
Replace cap
Spray gun in wrong mode
Make sure gun nozzle is pulled out
away from gun chemical mode
Metering tip plugged
Check metering tip for clog
Injector plugged
Remove safety cap from chemical and blow
small amounts of compressed air into line
Air entering system
Check for air entering system
around chemical lines or injector
Injector installed backwards
If fluttering or pulsing sound can be
heard while spraying or when machine
is running, it is possible that your injec-
tor is in backwards. Remove; reinstall.
Kink in chemical line
Replace chemical line
