Windsor 621-222MO, 10070460, 10070470, 621-225MO manual Troubleshooting, Problem, Cause, Solution

		TROUBLESHOOTING
PROBLEM	CAUSE	SOLUTION
Loss of Power	Dead electrical circuit	Check building circuit breaker or fuse box.
	Faulty power cord	Replace
	Equipment not grounding	Follow grounding instructions exactly
Electrical shock	Receptacle not grounded	Contact an electrician to check building’s wiring
	Internal wiring problem	Have a trained service technician check machine’s
		wiring
Vac motor speed varies	Worn motor brushes	Replace
	Motor worn out	Replace
or doesn’t run
	Faulty switch	Replace
	Loose vacuum dome	Center and seal dome over tank
	Crack in dome of poor joint	Replace or repair using acrylic plastic cement only
	Lint or dirt clogging	With power off clean screen
	vacuum screen
Loss of vacuum	Loose cuffs on vacuum	Tighten cuffs turning counterclockwise
	hose
	Vac motor seals leaking	Replace
	Floor tool vac chamber	Wash out with hose. Pick lint out with a wire
	clogged
	Vac motor, hose, or dome	Replace
	gasket
	Pump inlet screens	Clean inlet screens
	plugged
Pump runs no solution	Pump air locked	Press trigger to open valve on cleaning wand to
		relieve air
	Internal or external
	solution line damaged and	Replace
	leaking
	Jet orifice on cleaning	Total jet opening for 100 psi should be .06 to .08
	wand is to large
	Internal pump components	Replace, see pump kit components (pg 4-3)
	wearing out
Pump runs, loss of
	Note: Operation of pump using a wand or hand tool with an orifice of less than .06
pressure	will cause pump to cavitate or pulsate and could result in premature wear of pump
	components.
	Check valves in pump	Take piston from BPR and lubricate with Superlube.
	head for particles or cuts in
		If problem still exists change BPR kit
	seals
Pump will not run	Unit not plugged in	Connect unit to 3 prong grounded outlet
	Loose wiring	See dealer
Solution hose fitting hard	Corrosion on fittings.	Clean with steel wool. Soak in acetic acid (white
to connect		vinegar). Lubricate lightly with silicone base lubricant.
Carpet not getting clean	Severe soil conditions	Make several passes at right angles to each other.
		Use a pre-spray.
Carpet too wet	Over saturation	Adjust solution pressure to lower settings. Make
		several passes without spray
	Leaving carpet too wet	Check for loss of vac pressure
Carpet browning	Too much chemical	Check label for correct solution concentration
	Light carpet with no brown	Go over carpet with browning prevent only
	prevention
Solution not flowing	Solution hose connection	Check for positive connection
	Faulty pump	Repair or replace
properly	Faulty floor tool valve	Repair or replace
	Faulty pump switch	Repair
	NINJA INTL 86038610 03/29/07		4-5