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7. Dry the filter completely. Then reinsert the filter into the plastic assembly.
8. Replace the front cover of the water heater cabinet. Reconnect power supply to the water heater.
9. Press the Power button on the control panel to turn on the water heater.
Check Primary and Gas Piping
•
Remove the water heater cover and perform a gas leak inspection following Operating Instructions, page
2, this manual. If gas odor or leak is detected, follow procedures on page 2. Call a qualified service techni-
cian.
•
Visually inspect for leaks around the internal water heater water connections and around the heat ex-
changer. Visually inspect the external system piping, circulators, and system components and fittings. Imme-
diately call a qualified service technician to repair any leaks.
WARNING
Operate Pressure Relief Valve
•
Before proceeding, verify that the relief valve outlet has been piped to a safe place of discharge, avoiding
any possibility of scalding from hot water.
•
Shut power off to the water heater. To avoid scalding, wait for water heater to cool before operating the
relief valve.
WARNING
or heating/plumbing installer in accordance with the water heater installation manual. The discharge
line must be terminated so as to eliminate the possibility of severe burns or property damage should
the valve discharge.
•
Lift the relief valve lever. If water flows freely, release the lever and allow the valve to seat. Watch
the end of the relief valve discharge pipe to ensure that the valve does not weep after the line
has had time to drain. If the valve weeps, lift the lever again to attempt to clean the valve seat. If
the valve does not properly seat and continues to weep, contact a qualified service technician to
inspect the valve and system.
•
If water does not flow from the valve when you completely lift the lever, the valve or discharge line
may be blocked.
•
Immediately shut the water heater down per instructions on page 2 and call a qualified service
technician to inspect the valve and system.
•
If relief valve seats properly, restore power to the water heater. Observe operation for five minutes
and ensure it operates properly.
Check the Burner
Clean the exterior of the burner.
Cleaning the Cold Water Inlet Filter (Draining the Water Heater)
1. Place a bucket under the appliance to collect the residual water inside the water heater.
2. Press the Power button on the control panel to turn off the electrical power to the water heater. Then turn
off the gas valve.
3. Valve off the water heater from the system. If the water heater cannot be isolated from the system, turn off
the main water valve. Open the hot water faucets in the system to aid in draining the system.
5. Remove the cold water inlet filter. Then clean it with a toothbrush and clean running water. See Figure 48.
Have leaks fixed at once by a qualified service technician. Failure to comply may
result in substantial property damage, severe personal injury, or death.
To avoid water damage or scalding due to relief valve operation, a discharge
line must be connected to the valve outlet and directed to a safe place of dis-
posal. This discharge line must be installed by a qualified service technician
69
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