RIDGID OF45150 manual Troubleshooting, Trouble Probable Cause Remedy

Troubleshooting

!WARNING

For your own safety do not try and run the air compressor while troubleshooting.

TROUBLE	PROBABLE CAUSE	REMEDY
Compressor will not	1. Unit is plugged into	1. Remove extension cord
run	extension cord
	2. No electrical power	2. Plugged in? Check
		fuse/breaker or motor over-
		load
	3. Blown fuse	3. Replace blown fuse
	4. Breaker open	4. Reset, determining why
		problem happened
	5. Thermal overload open	5. Motor will restart when cool
	6. Pressure switch bad	6. Replace
Motor hums but can-	1. Low voltage	1. Check with voltmeter
not run or runs slow-	2. Unit is plugged into	2. Remove extension cord
ly	extension cord
	3. Shorted or open motor	3. Replace motor
	winding
	4. Defective check valve or	4. Replace or repair
	unloader
Fuses blow/circuit	1. Incorrect size fuse, circuit	1. Check for proper fuse, use
breaker trips repeat-	overloaded	time-delay fuse.
edly		Disconnect other electrical
		appliances from circuit or
		operate compressor on its
		own branch circuit
	2. Unit is plugged into	2. Remove extension cord
	extension cord
	3. Defective check valve or	3. Replace or repair
	under loader

TROUBLE	PROBABLE CAUSE		REMEDY
Thermal overload	1. Low voltage	1. Check with voltmeter
protector cuts out	2. Clogged air filter	2. Clean filter (see
repeatedly			Maintenance section)
	3. Lack of proper ventila-	3. Move compressor to well
	tion/room temperature		ventilated area
	too high
	4. Unit is plugged into	4. Remove extension cord
	extension cord
Air receiver pressure	1. Loose connections (fit-	1. Check all connections with
drops when com-	tings, tubing, etc.)		soap and water solution
pressor shuts off			and tighten
	2. Loose drain lock	2. Tighten
	3. Check valve leaking	3. Disassemble check valve
			assembly, clean or replace
			! DANGER
		Do not disassemble
		check valve with air in
		tank; bleed tank
Excessive moisture	1. Excessive water in air	1. Drain receiver
in discharge air	receiver
	2. High humidity	2. Move to area of less
			humidity; use air line filter
Compressor runs	1. Defective pressure	1. Replace switch
continuously	switch
	2. Excessive air usage	2. Decrease air usage; com-
			pressor not large enough
			for a requirement
Compressor vibrates	Loose mounting bolts	Tighten
Air output lower than	1. Broken inlet valves	1. Have authorized service
normal			representative repair unit
	2. Intake filter dirty	2. Clean or replace intake fil-
			ter
	3. Connections leaking	3. Tighten connections

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