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Alpine Condensing High Efficiency Direct vent boiler will not light
trent
Member Posts: 15
Was gone for 2 weeks. Came home and turned stat up. Everything was working and warming up. Went to bed and woke up cold. The water temp was 62F. The display is sequencing through the steps and buzzing briefly at the pre-ignition step before skipping to postpurge. There are no lockout codes, the sensor faults all read normal, and the limit string status display shows all of the switches are closed. After coming up for a coffee, I went back and found that the water was up to 92F so it had fired up for a while but it was back in the sequencing and failing to fire mode.
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