G&F Manufacturing R-410A, Service Manual

Page: 11 / 17

R&R Fan Motor
Turn off power. Remove front cover.
Disconnect fan wires from contactor, capacitor and ground.
Remove strain relief bushing and holding wires where they penetrate control box.
Feed wires out of control box.
Cut wire ties holding wires in a bundle.
Remove plastic fan motor cap from fan guard.
Remove 4 screws holding top on unit and remove top.
Flip top over and lay on ground or on level surface.
Loosen setscrew and then remove fan blade.
Lift one side of top up to a 45 degree angle and remove 4 nuts holding fan motor to fan
guard.
Lay top back down and remove motor.
Reverse procedure to install new motor.
Be sure to reinstall strain relief bushing where wires penetrate control box and replace fan
motor capacitor.
WARNING:
DO NOT Cut old WTS wire and splice in new WTS
R&R Water Temp Sensor
Turn off power. Remove front cover.
Unscrew water temp sensor (WTS) and take out. Screw in new WTS.
Take old WTS spade clips off of the back of the board.
Place new spade clip in same slot.
Close HP up.
ATTENTION:
The water temp probe is located on the lower water inlet elbow and is unserviceable.
Therefore when it’s necessary to replace probe, drill a 3/8 hole in upper elbow and install
new probe there. After it’s installed, wrap it once with cork tape then with closed cell
insulation, then again with cork tape.
Page 11