Gas Control Valve; Service; Ele Tri Al Servi Ing - A.O. Smith 104 Series Instruction Manual

GAS CONTROL VALVE

Figure 30 shows the ombination gas ontrol valves used on
these heaters
If gas ontrol valve be omes defe tive, repairs should not
be attempted A new valve should be installed in pla e of
defe tive one
The installer may be able to observe and orre t ertain problems
whi h may arise when the unit is put into operation HOWEVER,
it is re ommended that only a quali ed servi e te hni ian or
quali ed agen ies, using appropriate test equipment, be allowed
to servi e the heater
As preliminary step, he k wiring against diagram, he k for
grounded, broken or loose wires Che k all wire ends to be sure
that they are making good onta t

SERVICE

ELECTRICAL SERVICING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS WIRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS OPERATION
VERIFY PROPER OPERATION AFTER SERVICING
32
FIGURE 30.