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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
Thermostat is not set correctly
Burner is not operating properly
No electric power to boiler
Controls out of adjustment
Radiators not heating
Circulating pump not running
Poor electrical contact
Chimney fl ue is blocked
POSSIBLE CAUSE
Corrosion and/or deposits on
seat.
Water logged expansion tank
HAVE YOUR SERVICE TECHNICIAN CHECK ANY PROBLEM YOU
SERVICE HINTS
WHAT TO DO
Reset thermostat
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 technician.
Check over-current protection. Check to be sure electric power
supply circuit is "ON".
Reset according to instructions.
Open radiator vents to excess air. Check fl ow control valve (if
used). It may be in closed position.
Check over-current protection. Check relay operation.
Check all control terminals and wire joints.
Have the chimney professionally cleaned.
RELIEF VALVE LEAKING . . .
WHAT TO DO
Open valve manually. Allow water to run and clear valve seat.
Drain tank, see instructions.
ARE UNABLE TO CORRECT.
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