Service Manual

Blower Replacement Procedure
Step 6. Disconnect wire harness from blower.
Step 7. Remove the 2 gas valve mounting screws (Torx bit T-25 or 5/32 Allen wrench) located at the
11:00 O-clock & 5:00 O-clock position on the venturi mounting flange.
Step 8. Remove 4 blower flange mounting screws (5/32 Allen wrench) a
nd remove blower
from transition flange.
Step 9. Remove any residual gasket material
from venturi mounting flange and transition flange.
Ste
p 10.Install new blower with new gasket
provided. Secure blower in place using
screws from step 8.
Step 11. Reconnect gas valve assembly to
blower
with new gasket provided. Secure gas
valve in place using screws from step 7.
Step 12. Reconnect PVC damper assembly, gas supply a
nd silicone tubing to gas valve. Turn on gas
supply to heater and check for gas leaks, repair any gas leaks found.
Step 13. Reconnect
wire harnesses to blower assembly and gas valve, restore 120 volt power supply to water
heater and confirm proper operation following the lighting instructions on the lighting instruction label or the
lighting instructions located in the installation and operating instruction manual.
Step 14. Replace surround
cover on top of water heater.
Step 1. Position main power switch to “OFF.
Step 2. Disconnect (unplug) water heater from
120 volt power source.
Step 3. Turn off gas supply to water he
ater.
Step 4. Un-latch & remove surround cover from top of
heater.
Step 5.From the gas valve, disconnect the gas
connection, PVC damper assembly, silicone tubin
g
and wire harness.
WARNING
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
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Blower
Blower / gas valve
gasket
Gas valve
assembly
Blower mounting
screws (X4)
Gas valve mounting
screws (X2)
Blower transition
gasket
Blower transition
39