Service Checklist - A.O. Smith FPS 75 Technical Information

FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK
SERVICE CHECKLIST
VI
PROPER SEQUENCE OF OPERATION
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
A. FPS40 - 50
During standby is blower off?
On a call for heat does gas valve open?
Does gas pressure switch close?
Does the blower come on?
If so, does the air pressure make?
Does the solenoid open?
Does main burner ignite?
Does the thermostat satisfy?
Comments:
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
A.FPSE40-50
During standby is blower off?
On a call for heat does gas valve open?
Does gas pressure switch close?
Does the blower come on?
If so, does the air pressure make?
Does the solenoid open?
Does main burner ignite?
Does the thermostat satisfy?
Comments:
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
A. FPD40 - 50
During standby is blower off?
On a call for heat does gas valve open?
Does gas pressure switch close?
Does the blower come on?
If so, does the air pressure make?
Does the solenoid open?
Does main burner ignite?
Does the thermostat satisfy?
Comments:
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
A. FPS75
During standby is blower off?
On a call for heat does gas valve open?
Does gas pressure switch close?
Does the blower come on?
If so, does the air pressure make?
Does the solenoid open?
Does main burner ignite?
Does the thermostat satisfy?
Comments
@1995
A.D.
Smith
Water Products Co
Technical Information
Irving, Texas
97