Amana, a division of Whirlpool Corporation, is an American appliance manufacturing company that offers an extensive line of residential heating solutions, including furnaces. Models from Amana's GUCA series are residential, high-efficiency, gas-fired, warm-air furnaces with annual fuel utilization efficiency (AFUE) ratings of 80 percent or greater. When the blower motor in your Amana GUCA furnace wears out, changing it should have your furnace up and running in just a couple hours.
Things You'll Need
Disconnect the power to the furnace before servicing it. Never attempt to repair or replace internal furnace components while the power is applied, as serious injury or death may result.
Open your fuse box or electrical service panel. Remove the appropriate fuse or locate the circuit breaker labeled "Furnace" and switch it to the "Off" position. Close the gas valve to disrupt the gas supply during your repairs.
Remove the blower compartment door. This is the top door on downflow models, the bottom door on upflow models and the right door on horizontal models.
Take out the screws securing the blower compartment door to the furnace cabinet. The type and number of screws may vary by Amana furnace model. Pull the door away from the furnace and set it aside.
Reach around the side of the blower assembly to disengage the latches holding the two cable connectors to the motor wiring harness. Pull on the connectors only; pulling on the cables may damage them.
Take out the two mounting screws at the top of the blower assembly. Pull the blower assembly out of the furnace cabinet and set it on a padded surface with the motor facing up.
Remove the four screws and washers mounting the motor to the blower assembly. Pull out the old motor, and set aside the removed screws and washers for reinstallation.
Lower the replacement motor into the blower assembly. Replace the washers. Reinsert and tighten the four motor mounting screws. Plug the two cable connectors into the motor wiring harness.
Hold the blower compartment door to the front of the furnace. Insert the door screws and tighten them. Restore the electrical and gas supplies.
Tips & Warnings
- Vacuum the inside of the blower compartment. Clean the blower wheel before installing the new motor, if desired. Use a vacuum with a brush attachment to clean the blower wheel blades.
- Replacing internal components yourself may void the warranty on your Amana Guca furnace. Contact Amana customer service or consult the appliance warranty agreement for more information.
- Residential Construction Academy: HVAC; Eugene Silberstein
- Amana: GUCA Gas Furnaces Service Instructions
- Amana: GUCA Gas Furnaces Installation Instructions