Bruce Cahoon Posted November 13, 2019 Report Share Posted November 13, 2019 (edited) This furnace was installed in 1985 as part of construction of a new R 2000 home. It still heats the house fine. However at startup the burners are on for only about 20 seconds and after about 3 seconds the burners are on again for only about 6 seconds and for the rest of the heating cycle the burners are on for about 2 seconds the off for about 3 seconds. If I squeeze tightly the white plastic tube with the rubber band around it (see image), the burners stay on as one would expect. We have cleaned the flame detector. Edited November 14, 2019 by Bruce Cahoon re wprding Quote Link to comment Share on other sites More sharing options...
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