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Dave Benardis
Feb 12, 2007, 07:08 AM
The vent blower kicks on but gas valve never opens. The light down below blinks 3 times. It says something in the manual about the pressure switch not closing. Please help.
NorthernHeat
Feb 12, 2007, 03:03 PM
Click on, What is a pressure switch? (http://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-frequently-asked-questions-58313.html#post268203)