Slant/Fin J-390 Safety Check, Check for gas leaks, Thermostat Test, Control Safety Shutdown test

38 Jaguar Model J-390

V. SAFETY CHECK

A.Check for gas leaks:

Using soap solution, check for gas leaks from meter to gas valve including all pipes and fittings and gas valve connections. Use liquid soap solution for all gas testing. DO NOT use open flame.

B.Thermostat Test:

Set thermostat setting to low enough to end call for heat. Gas valve should close and burner should stop firing. Blower and circulator pump should go into a post purge, then shut off.

C.Control Safety Shutdown test:

With the burner firing, disconnect the spark cable from the spark ignitor. Gas valve should close and burner should stop firing. The boiler will try for ignition three times after this, then should lock out with an “A 01” error shown on the display. Reconnect the spark cable to the spark ignitor, and press the “Reset” button to return to normal operation.

VI. DIAGNOSTIC ERROR CODES

WARNING: Only a trained, experienced service technician should perform troubleshooting. Turn off all electric power to the boiler before service.

A.LOCKOUT ERRORS: Indicated by an “A” in the mode display. The reset button must be pressed to clear the error and retry operation. The temperature display shows the error code.

ERROR CODE	INDICATION	REMEDY
		Check for steady sparking at electrodes. If spark not
01	Ignition Failure - 3 unsuccessful	steady - check spark gap to be .125”, clean or replace
		spark ignitor, check power supply voltage and grounding.
	ignition attempts in a row.	If spark is steady - check for proper gas supply pressure.
		Check combustion, if able to ignite, or replace gas valve.
	Flame Failure - 3 losses of flame	Check for proper combustion, at both max. and min.
02		input firing rates. If combustion is within the range
	signal during one demand.	specified on page 37, clean or replace spark ignitor,
		check power supply voltage and grounding.
03		Check to see if the water outlet temperature reaches
	Water High Limit Open	203˚F. If it does, replace the water outlet 12k ohm
		sensor. If it does not, replace the water high limit switch.
04, 05, 09, 10,		Replace control board. Make sure the proper boiler
12, 13, 14, 15,	Control Failure
		model selection and confirmation code is entered.
16, 18, 32		See Table 5 on page 33.
19, 20		If a flame is still observed after a call for heat is stopped,
	Flame Detected at Wrong Time	replace the gas valve. If the burner seems to be shutting
		down properly, replace the spark ignitor.
33	Fan Failure - RPM error	Check wire harness connections going to the blower.
		Replace blower.