furnance turns on turns off
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furnance turns on turns off
Hi, I have a Weil-McLain furnance that is in it 5th season of heating. Every 10-15 minutes the furnance will turn on for a few to 20 seconds and turn off. Any ideas? There are 3 zones and I lowered each thermostat, turned off the programable one, and turned the furnance on and off all with no luck. I'd like some thoughts before I call the repair service. Thanks.