Lennox International Inc Gas-Fired Hot Water Boiler Service Hints, Possible Cause What to do

16 - SERVICE HINTS

!CAUTION

WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call the fire department.

IF YOUR SYSTEM IS NOT HEATING OR NOT GIVING ENOUGH HEAT . . .

You may avoid inconvenience and service calls by checking these points before you call for service.

Possible Cause What to do

Thermostat is not set correctly Reset thermostat above room temperature

Burner is not operating properly Check flame. If it is yellow, burner is not getting enough air. Or, if flame is blue and noisy and seems to lift off burner, burner is getting too much air. Contact your service technician.

No electric power to boiler	Check over current protection. Verify electric power supply circuit is
	“ON”.
Controls out of adjustment	Reset according to instructions.
Radiators not heating	Open radiator vents to expel air. Check flow control valve (if
	used). It may be in closed position.
Circulating pump not running	Check over current protection. Check relay operation.
Poor electrical contact	Check all control terminals and wire joints.
Rollout switch blown	Have your service agent check heat exchanged for blockage.
	Replace rollout switch with exact replacement.
Blocked vent blown	Have your service agent check venting system and chimney
	for blockage, or down draft condition. Reset blocked vent.
Vent damper not operating	Consult troubleshooting guide in Effikal manual, packaged with
	vent damper.
	IF BURNER IS NOISY . . .
Possible Cause	What to do
Gas input amount is incorrect	Contact your service agent.
	RELIEF VALVE LEAKING . . .
Possible Cause	What to do
Dirt on seat	Open valve manually. Allow water to run and clear valve seat.
Water logged expansion tank	Drain tank, see instructions.

HAVE YOUR SERVICE AGENT CHECK ANY PROBLEM YOU ARE UNABLE TO CORRECT.

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