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Thanks for the responses. I noticed tonight that it is blinking four times, which says "open main limit/ aux limit" on our furnace. I guess that probably means there is not enough ducting?

HI,
I have a furnace that won't stay in. The blower keeps blowing, but the heat cuts out because the flames get shut off every two minutes or so.

Over the summer, we remodeled and streamlined the...

HI,
I have a furnace that won't stay in. The blower keeps blowing, but the heat cuts out because the flames get shut off every two minutes or so.

Over the summer, we remodeled and streamlined...