Whirlpool Gold WGGE45 Installation Instructions Manual

22MAINTENANCEHave the gas heating section of the unit checked at least once ayear before the heating season begins, to be sure that thecombustion air inlet and flue outlet hoods are not blocked bydebris, which would block adequate combustion air and a keepthe vent system from operating properly.Filter Replacement or CleaningA return air filter is not supplied with this unit; however, theremust be a means of filtering all of the return air. The filter(s) maybe located in the return air duct(s), or return air filter grille(s).Consult with your installing dealer for the actual location of thereturn air filter(s) for your unit.Dirty filters are the most common cause of inadequate heating orcooling performance. Filter inspection should be made at leastevery 2 months; more often if necessary because of localconditions and usage.Dirty throwaway filters should be discarded and replaced with anew, clean filter. Dirty permanent filters should be washed withwater, thoroughly dried and sprayed with a filter adhesive beforebeing reinstalled. (Filter adhesives may be found at manyhardware stores.) Permanent filters should last several years.However, should one become torn or uncleanable, it should bereplaced.Cabinet Finish MaintenanceUse a fine grade automotive wax on the cabinet finish to maintainthe finish’s original high luster. This is especially important ininstallations with extended periods of direct sunlight.Clean Outside Coil—Qualified Servicer OnlyThe coil with the outside air flowing over it should be inspectedannually and cleaned as frequently as necessary to keep thefinned areas free of lint, hair and debris.Condenser, Evaporator and Induced Draft MotorsBearings on the air circulating blower motor, condenser motorand the combustion fan motor are permanently lubricated. Noadditional oiling is required.Flame Sensor (Qualified Servicer Only)A drop in the flame current can be caused by a nearly invisiblecoating on the flame sensor. This coating, created by the fuel orcombustion air supply, can be removed by gently cleaning theflame sensor with steel wool.NOTE: After cleaning, the microamp signal should be stable andin the range of 4 to 6 microamps DC.Flame SensorFlue Passages—Qualified Servicer OnlyAt the start of each heating season, inspect and, if necessary,clean the unit flue passage.Cleaning Flue Passages—Qualified Servicer Only1. Disconnect the electric power and gas supply to the unit.2. Remove the burner assembly by disconnecting the gas lineand removing the manifold bracket from the partition panel.3. Remove the flue from the induced draft blower and thecollector box cover from the partition panel.4. The primary heat exchanger tubes can be cleaned using around wire brush attached to a length of high grade stainlesssteel cable, such as drain cleanout cable. Attach a variablespeed reversible drill to the other end of the spring cable.5. Slowly rotate the cable with the drill and insert it into one ofthe primary heat exchanger tubes.6. While reversing the drill, work the cable in and out severaltimes to obtain sufficient cleaning.7. Use a large cable for the large tube, and then repeat theoperation with a small cable for the smaller tube. Repeat foreach tube.8. When all heat exchanger tubes have been cleaned, replacethe parts in the reverse order in which they were removed.9. To reduce the chances of repeated fouling of the heatexchanger, perform the steps listed in “Start-Up, Adjustmentsand Checks.”Main Burner Flame—Qualified Servicer OnlyFlames should be stable, soft and blue (dust may cause orangetips but must not be yellow). The flames must extend directlyoutward from the burner without curling, floating or lifting off.Goodman 6HIGH VOLTAGE!WARNINGDisconnect ALL power before servicing.Multiple power sources may be present.Failure to do so may cause property damage,personal injury or death.A. Flame sensorA