SECTION THREE: TROUBLE-SHOOTING
Solution
1. Open all drain valves
2. Clean float switch
3. Remove thumb knobs and
push engine compartment
cover back a few inches
4. Unkink hose
5. Tighten pump’s garden
hose swivel fitting or replace
impeller
6. Clean filters
7. Replace
1. Turn water on
2. Open all valves
3. Unkink hose
4. Clean or replace
1. See above section “Recov-
ery tank will not drain”
2. Increase defoamer injection
1. Plug in
2. Reset circuit breaker
3. Call us
1. Remove and clean
2. Remove spray jet from
prespray wand and run vinegar
or acid rinse through system
3. Replace injector
4. Clean filter
1. Replace injector or O rings
1. Reseat quick connect
2. Remove and clean
1. Quit using them
1. Clean air filter
2. Clean vacuum shoe
3. Replace worn gasket(s)
1. Immediately stop operating
and call us
1. Clean tube
2. Clean plunger (see Repair
Manual)
3. Replace push button
4. Replace solenoid
Problem
Recovery tank
will not drain
No water supply
RPM’s of vacuum motor
going dramatically down
Vacuum motor will not
turn on
No chemical injection
with prespray
Back filling of
prespray bottle
Water going to machine
but not to prespray system
Hazing of view windows
Slow drying times
Machine shocks you
Defoamer not injecting
Cause
1. Closed drain valve(s)
2. Dirty float switch
3. Hot pump
4. Kinked drain hose
5. Pump not priming
6. Clogged water filters
7. Bad pump or float switch
1. Water not turned on
2. Closed valve(s)
3. Kinked hose
4. Clogged garden hose screen
washer (see figure 27)
1. Recovery tank full of water
2. Excess soap residue in carpet
1. Check wall plug and plug on
back of machine
2. Check circuit breaker
3. Bad switch, loose wire or bad
motor
1. Clogged injector or injector tip
2. Chemical residue in system
3. Worn or pitted injector (check
chemical being used)
4. Clogged chemical line filter
1. Worn Orings in chemical
injector
1. Quick connect not seated
properly
2. Clogged injector
1. Use of strong solvents
1. Obstructed air filter
2. Obstructed vacuum shoe
3. Worn gaskets (you should
hear sucking noises)
1. Short or improper ground in
either machine or outlet
1. Clogged defoamer inlet tube
2. Clogged defoamer solenoid
plunger
3. Broken push button
4. Broken solenoid
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