Kenmore boiler troubleshooting

Kenmore is a brand of household tech, the products of which are sold through Sears, Roebuck and Co. Initially, the company produced only washing machines. Over time, the range of products Kenmore became more wide. Thus, the brand began to produce boilers. There is a table below with the system of Kenmore boiler troubleshooting.

Thermostat is not set correctly Burner is not operating properlyReset thermostat above room temperature.
No electric power to boilerCheck flame. If it is yellow, the burner is not getting enough air. Or, if flame is blue and noisy and seems to lift off the burner, the burner is getting too much air Contact your service technician.
Controls out of adjustment Radiators not heatingCheck overcurrent protection. Check to be sure electric power supply circuit is "ON."
Poor electrical contact Rollout switch blownReset according to instructions.
Chimney flue is blockedSteam air vents are not operating properly. Check flow control valve (if used). It may be in closed position.
Vent damper not operatingCheck all control terminals and wire joints.
Have your service technician check heat exchanger for blockage. Replace rollout switch with exact replacement.
Spill switch contacts open, requiring manual reset of spill switch. Have your service technician check and correct chimney problem.
Consult troubleshooting guide in Effikal manual, packaged with vent damper.
Gas input amount is incorrectContact your service technician.
Not enough ventilation Chimney flue is blockedContact your service technician.
Have your service technician check and correct, if necessary.
Dirt on seatOpen valve manually. Allow steam to blow and clear valve seat.