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Anode Rod Replacement
To replace the anode:
1. Turn off gas supply to the water heater.
2. Shut off the water supply and open a nearby hot-water
faucet to depressurize the water tank.
3. Drain approximately 20 litres (5 US gallons) of water
from tank (Refer to "Draining and Flushing" for proper
procedures.) Close drain valve.
4. Remove old anode rod.
5. Use Teflon® tape or approved pipe sealant on threads
and install new anode rod.
6. Turn on water supply and open nearby hot-water faucet
to purge air from water system.
7. Restart the water heater as directed under "Operating
Your Water Heater." See the "Parts Reference
Illustration" for anode rod location.
Routine Preventative Maintenance
Important: If you lack the necessary skills required to prop-
erly perform this visual inspection, you should not proceed,
but get help from a qualified service technician.
At least annually, a visual inspection should be made of the
venting and air supply system, piping systems and main
burner. Check the water heater for the following:
• Build up of soot and carbon on the main burner. Check
for a soft blue flame.
• Leaking or damaged water and gas piping.
• Presence of flammable or corrosive materials in the
installation area.
• Presence of combustible materials near the water
heater.
• Verify proper operation after servicing this water heater.
Gas Control
There are no user serviceable parts in this control. The con-
trol is supplied with tamper resistant screws. DO NOT
attempt to repair or adjust the control. If you experience
problems, discontinue use and replace the control immedi-
ately. Continuing to use a damaged control could result in
fire and/or explosion.
If you wish to verify that the water heater is operating prop-
erly:
1. Make sure there is power to the water heater.
2. Make sure that the gas is turned on to the water heater.
3. Initiate a call for heat by either drawing hot water from a
nearby faucet or raising the temperature setting (see
section “Temperature Regulation”).
4. Note any error codes that appear and proceed to the
“Troubleshooting” section.
Temperature and Pressure Relief Valve
Manually operate the temperature and pressure relief valve
at least once a year to make sure it is working properly (see
Figure 27). To prevent water damage, the valve must be
properly connected to a discharge line that terminates at an
adequate drain. Standing clear of the outlet (discharged
water may be hot), slowly lift and release the lever handle
on the temperature and pressure relief valve to allow the
valve to operate freely and return to its closed position. If the
valve fails to completely reset and continues to release
water, immediately shut off the manual gas valve and the
cold-water inlet valve and call a qualified service technician.
– 29 –
WARNING
Explosion Hazard
• If the temperature and pressure relief
valve is dripping or leaking, have a
licensed plumber repair it.
• Do not plug valve.
• Do not remove valve.
• Failure to follow these instructions can
result in death or an explosion.
Temperature and Pressure
Relief Valve
Manual Relief Valve
Discharge line to drain
Figure 27 T&P Valve Test