A.O. Smith GP 6 50YPC T 100 Benutzerhandbuch

28

Important: Use only factory authorized replacement 

parts.  If you lack the necessary skills to properly 

perform the installation, you should not proceed, but 

get help from a qualified service technician.
Tools required: Phillips Head Screwdriver.

Removing the Pressure Switch:
1.  Set the gas control valve/thermostat to its lowest 

setting by pressing the “COOLER” and “HOTTER” 

buttons together at the same time holding for 1 

second. Then press the “COOLER” button to the 

lowest setting (Figure 36).

2.  Turn gas control switch to the “OFF” position 

(located right side of the gas control valve/

thermostat) and turn off the gas supply to the unit 

(Figure 37). 

3.  Disconnect the electric connection by unplugging 

the transformer from the wall outlet (Figure 37).

4.  Remove the manifold cover/ outer door from the 

unit by depressing on the lower portion and pulling 

outward.

5.  Remove the air pressure tubing from the air 

pressure switch by pulling downward on the 

tubing at the connection to the air pressure switch 

(Figure 38).

6.  Remove the two (2) electrical flag terminals from 

the switch by pulling outward and off of the switch 

(Figure 39).

7.  Using a phillips head screwdriver, remove the 2 

screws securing the pressure switch to the water 

heater’s side (keep these screws in a safe place 

for reinstallation later) (Figure 39).

Installing the Pressure Switch:
8.  Secure the new pressure switch to the water 

heater’s side by reusing the 2 screws removed in 

step 7 (Figure 39).

9.   Reattach the two (2) electrical flag terminals 

by pushing the flag terminals onto the switch    

(Figure 39).

10. Reattach the air pressure tubing to the air 

pressure switch by pushing the tubing onto the 

connector until the end of the tubing pushes to the 

shoulder of the connector (Figure 38).

11. Turn on the electrical and the gas supplies to the 

water heater. Plug in the electric connection from 

the transformer to the electric outlet (Figure 37).

12. Restart the water heater by following the 

directions on the “Lighting and Operating 

Instructions” label located on the front of the water 

heater.

13. Upon verifying proper operation of the water 

heater, replace the manifold cover/outer door.

g

COOLER

HOTTER

Electronic Control Display

ON/OFF 

SWITCH

ON

OFF