Weil-McLain 550-110-710/0107 11c Troubleshooting control module lights, Chart Light flashing

Page 51

GOLD CGi Gas-Fired Water Boiler — Boiler Manual

11c Troubleshooting — control module lights

CHART 1— Troubleshooting POWER light status

— Usually indicates reversed 120 VAC polarity if POWER light flashes by itself —

Electrical shock hazard — Wherever you see ▲TURN OFF POWER▲, follow the instructions. Failure to follow instructions could result in severe personal injury, death or substantial property damage.

Is POWER light off?

No				Yes


		Is POWER light ...

Flashing		Flashing with		On steady
alone		another light		(not flashing)



	TSTAT CIRC	Chart
	light flashing	2
	light flashing	2

	PRESS SWITCH	Chart		Chart
	light flashing	3		5

	FLAME	Chart		Chart
	light flashing	4		6

For insufficient heat or no heat problem, go to Chart 7 if POWER light is on steady, with no other light flashing.

•Make sure service switch or circuit breaker is on or fuses are good.

•Remove 120 VAC IN plug (Figure 38, Item 3, page 50) on control module.

•Using voltmeter, check across top and bottom pins of

120 VAC IN plug.

Does voltmeter indicate 120 VAC?

No	Yes

Problem is with incoming electricity. Have licensed electrician repair circuit.

•Reconnect 120 VAC IN plug.

•Remove 120 VAC IN transformer PRIMARY plug (Figure 38, Item 2, page 50) on control module.

•Using voltmeter, check across top and bottom pins of PRIMARY receptacle.

Does voltmeter indicate 120 VAC?

No	Yes

•Usually indicates polarity on incoming 120 VAC power line is wrong.

•▲TURN OFF POWER▲ at service switch or breaker, then reverse the HOT and NEUTRAL wires entering the boiler in the J-box.

•Restore POWER at service switch or breaker.

Is POWER light flashing now?

No	Yes

		Have system checked by a
		licensed electrician. If
		problem persists, call your
Boiler should now		local Weil-McLain sales
operate normally.		representative.

Replace control module.

Retest.

•Reinstall 120 VAC transformer PRIMARY plug.

•Remove 24 VAC transformer plug (Figure 38, Item 5, page 50) on control module.

•Using voltmeter, check pins of plug.

Does voltmeter indicate 24 VAC?

No			Yes


Replace transformer.
Retest and check for back
feed of voltage from			Replace control module.
system wiring.			Retest.

Part Number 550-110-710/0107	51

Image 51

Contents Gold CGi How it works Gold CGi Gas-Fired Induced-Draft Water Boiler Contents Please read before proceeding 1a Prepare boiler location codes & checklist Installations must follow these codesBefore locating the boiler, check the following 1b Prepare boiler location clearances When removing boiler from an existing common vent system 1c Prepare boiler location vent systemChimney or vent require- ments Products to avoid 1d Prepare boiler location air contaminationTwo openings Air supply from inside the building 1e Prepare boiler location air openingsAir openings must be provided Air opening optionsException for large spaces Exhaust fans and air moversMotorized air dampers Single air opening optionInspect orifices and burners 2a Prepare boiler placement & setupOrifice replacement procedure Place boiler/crate near positionPrepare boiler for test 2b Prepare boiler pressure testHydrostatic pressure test Drain and remove fittingsChimney draft venting 3a Venting general informationVenting chimney draft venting CGi venting methods Chimney draft or Direct exhaustObtain vent system components 3c Venting Direct exhaust componentsVent StaR-34 Vent starter 3d Venting direct exhaust vent starterVent termination minimum clearances 3e Venting direct exhaust termination3f Venting direct exhaust installation Vertical venting See . Follow ventSidewall venting See Figures 14 Using any termination other than one of those shown 4a Water piping general information 4b Water piping single-zone system Diaphragm-type or bladder- type expansion tank FigureClosed-type expansion tank Piping multiple zones 4c Water piping multiple zonesZoning with circulators Primary/secondary preferred bypass piping method 4d Piping low temperature systemsTemperature gauges Valve adjustmentPrimary/secondary piping BOILER-bypass piping method Valve adjustmentBoiler-bypass piping Zoning with SYSTEM-bypass piping method Prevent chilled water from entering boiler 4e Water piping refrigeration systemPropane Gas Connecting gas supply piping to boilerGas piping Natural GasThermostat Field wiringElectrical installation must comply with Wiring connectionsDetermine if water treatment is needed Freeze protection when used7a Start-up preparation Check for gas leaksInspect base insulation Do not use petroleum-based cleaning or sealing compoundsFill the system with water Inspect system water piping7b Start-up operate boiler Start the boilerCheck system and boiler Pilot burner flame Figure 7c Start-up if boiler doesn’t startCheck burner flames Check forThermostats Check-out procedure checklistDuring main burner operation 9a Operation sequenceSchematic wiring diagram 9b Operation wiring diagramsLadder wiring diagram 9c Operating instructions CGi-25 to CGi-6 9c Operating instructions CGi-25 to CGi-6 9c Operating instructions CGi-25 to CGi-8 Verify Proper Operation After Servicing 10a Service and maintenance schedule10b Service and maintenance annual start-up Inducer motor 10b Service & maintenance annual start-upBurners and base Condensate drain systemLimit controls and cutoffs Gas pipingCold fill and operating pressures Air vents and air eliminationReview with owner Boiler relief valveReview the User’s Information Manual with the owner Air pressure switch 11a Troubleshooting procedure11b Troubleshooting components Before troubleshootingControl module Control indicator lightsTroubleshooting the control module Control indicator lights Lockout modesControl module connections VAC in plug 11c Troubleshooting control module lightsChart Light flashing Remove 120 VAC in plug , Item 3, page 50 on control moduleChart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Usually indicates flame sensed when it shouldnt be there Chart 4 Flame & Power lights flashingDoes blower motor operate? Item 8 , Operation, Figure Verify Sequence12a Replacement parts Section assembly Base Jacket Trim ControlsControls Repair Parts Lists Section assembly 12b Replacement parts section assemblyBase assembly 12c Replacement parts baseDescription Weil-McLain Part number Jacket assembly 12d Replacement parts jacketBoiler Model Weil-McLain part numberBoiler Model Weil-McLain part number Fittings shown are included with boiler 12e Replacement parts trimPropane gas components 12f Replacement parts controlsDimensional drawing 13a Dimensions13b Ratings Removal of Combustion Chamber Lining or Base Panels Handling ceramic fiber and fiberglass materials