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You may avoid inconvenience and service calls by checking these points before you call for service:
IF YOUR SYSTEM IS NOT HEATING OR NOT GIVING ENOUGH HEAT . . .
POSSIBLE CAUSE WHAT TO DO
Thermostat is not set correctly Reset thermostat
Burner is not operating properly
Check fl ame. If it is yellow, the burner is not getting enough air. Or, if
fl ame is blue and noisy and seems to lift off the burner, the burner is
getting too much air. Contact your service agency.
No electric power to boiler
Check over-current protection. Check to be sure electric power supply
circuit is “ON”.
Controls out of adjustment Reset according to instructions.
Radiators not heating
Open radiator vents to excess air. Check fl ow 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.
Chimney fl ue is blocked
Pressure switch will not close and pilot spark will not operate to start
pilot. Have your service technician check and correct, if necessary.
Rollout switch blown
Have your service technician check heat exchanger for blockage. Replace
rollout switch with exact replacement.
IF BURNER IS NOISY . . .
POSSIBLE CAUSE WHAT TO DO
Gas input amount is incorrect Contact your service technician.
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 manufacurer instructions.
HAVE YOUR SERVICE AGENCY CHECK ANY PROBLEM YOU
ARE UNABLE TO CORRECT.
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 fi re
department.
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