Replaced pressure switch assembly on amana system. Tested. System is operational at this time. Performed courtesy checks on both furnaces. Amana system. Cleaned flame sensor. Checked igniter. Tightened wiring connections. Inducer and blower motor are operating within manufacturer specs. Am. Std. System. Tested heat. Checked flame sensor and igniter. Tightened wiring connections. Inducer and blower motor are operational. Both capacitors are within spec. System is operational at this time.