Roberts Gorden HP 208 V 3, HP 208 V 1, HP 230 V 1, HP 460 V 3 System Control Troubleshooting Chart

SECTION 5: TROUBLESHOOTING

FIGURE 9: System Control Troubleshooting Chart

If control is not working properly, disconnect power to control and check for signs of physical damage to the front and back of the circuit board, water damage (cor- rosion) or scorching. If damage is found, identify and rectify source of damage. Replace circuit board (P/N 10090101), if it has permanent damage.

Is the line power	No	Check the power supply
		to the system control
indicator on?
		panel. Is it on?
		No
		Rectify power supply
		problem.
Yes

	Check the 250mA		Contact
Yes		Yes	Roberts-Gordon LLC
	fuse. Is it OK?
			at www.rg-inc.com.
	No
	Replace fuse with
	P/N 10000212.

Adjust thermostat set		Is external wiring to the
point to call for heat.	No
Does the pump		pump OK?
come on?
		No
		Rectify.
Yes
Does the zone light	No	Does the pressure switch
come on?		light come on?
		No
		Is external wiring to the
		pressure switch OK?
		No
		Rectify.
Yes
Do the incorrect zone		Are the zone thermostats
lights or all zone	Yes
		wired correctly?
lights come on?
		Yes
		Contact
		Roberts-Gordon LLC
		at www.rg-inc.com.
No
Do the burners in the	No	Is external wiring to the
zone come on?		zone OK?
		No
		Rectify.
Yes
Do the burners turn off		Contact
	No	Roberts-Gordon LLC
when the thermostat is		at www.rg-inc.com.
satisfied?
Yes
Does the pump turn off		Contact
	No	Roberts-Gordon LLC
following post purge period?		at www.rg-inc.com.
Yes
Troubleshoot ends.
Contact
Roberts-Gordon LLC
at www.rg-inc.com.

Yes

Yes

No

Yes

Is the correct contactor

selected for the

pump?

No

Fit the correct contactor.

Refer to burner trouble- shooting in either the

CORAYVAC® or

VANTAGE® NP

Installation, Operation and

Service Manuals.

Turn off power and correct

wiring.

Has the system been

commissioned?

Yes

Refer to burner trouble- shooting in either the

CORAYVAC® or

VANTAGE® NP

Installation, Operation and

Service Manuals.

Refer to burner trouble-

Yes	shooting in either the
	CORAYVAC® or
	VANTAGE® NP

Installation, Operation and

Service Manuals.

Is the thermostat connected	No	Rectify.
Yes to the correct terminal at the
system control.

Yes

Contact

Roberts-Gordon LLC

at www.rg-inc.com.

Refer to the burner start up

No instructions in either the CORAYVAC® or VANTAGE® NP Installation, Operation

and Service Manuals.

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