Amtrol RP-10HP Troubleshooting, Problem, Solution, Code, Reason, Action, Cause & Remedy

Troubleshooting

The Guardian CP™ incorporates built-in diagnostics. If the AMTROL Pressuriser® is not functioning properly or is inoperable, look for a error code (example E1) on the digital readout before proceeding. Error codes are listed in the table at the bottom of this page.

PROBLEM	CAUSE		SOLUTION
	1.	No Power.	1.	Check circuit breaker and fuses, tighten connections.
	2.	Faulty wiring.	2.	Check wiring per installation diagram in this booklet. If pump hums,
Pump will not start.				but will not start, check pump motor wiring (115/230V).
	3.	Damaged motor.	3.	If display illuminates with no error code, but pump will not start,
				replace pump.
	4.	Damaged control.	4.	If power is present at L1/L2 but display is blank, replace control.
	1.	Supply closed/blocked.	1.	Open all supply valves, ensure check valve is not sticking, clean
				any filters.
Pump runs but will	2.	Bypass loop open.	2.	Close bypass valve.
not build pressure.	3. Pump plumbed backwards.		3.	Reverse inlet/outlet.
	4.	Bad internal parts.	4.	Check for bad seals or broken impeller. Repair or replace as
				necessary.
Pump builds	1. Operating pressure set too high.		1.	Reduce control setting as necessary.
	2.	Bad internal parts.	2.	Check for bad seals or broken impeller. Repair or replace as
pressure but will not
				necessary.
shut off.
	3.	Control line blocked.	3.	Remove control line and blow compressed air to clear.
Pump starts too often	1.	Control differential too narrow.	1.	Set cut-in and cut-out 20 psi apart.
	2. Tank precharge incorrect.		2.	Set air pressure 2 psi below cut-in while pump is off and gauge
(cycles under 30				pressure is zero.
sec.).
	3.	Waterlogged pressure tank.	3.	If water emerges from tank air stem when depressed, replace tank.

To reset control at any time, press    buttons simultaneously for 5 seconds.

To "invert" the display for easier viewing, press   together for 3 seconds.

CODE	REASON	ACTION	CAUSE & REMEDY
E1	Rapid cycle	Switch continues to operate.	See “Pump Starts Too Often” above.
	Excessive amp draw		Have pump checked for proper operation.
E2	Low-suction	Shuts off pump. Auto restart	1.	Determine cause of low-suction.
	(running pressure)	after 60 min.	2.	Check Wiring.
	below 10 PSI		3.	Inspect pump.
E3	Improper voltage	Shuts off pump.	Restore voltage to proper range. Pump automatically
			restarts with proper voltage.

THE GUARDIAN CP CONTROL CONTAINS NO SERVICEABLE PARTS. REMOVAL OF MAIN CIRCUIT BOARD COVER WILL VOID WARRANTY.

LOW-LEAD

1400 Division Road, West Warwick, RI USA 02893

T:800.426.8765 F: 800.293.1519 www.amtrol.com

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© 2014 AMTROL Inc. Part #: 9040B140 (07/14)