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5-1. Maintenance
Periodically check the following to ensure proper operation of the water heater..
•The venting system must be examined periodically by a qualied service technician to check for any leaks or corrosion.
• The burner ame must be checked periodically for a proper blue color and consistency.
• If the ame does not appear normal, the burner may need to be cleaned.
• If the burner needs to be cleaned, it must be performed by a qualied service technician.
• Do not obstruct the ow of combustion and ventilation air.
• The pressure relief valve must be operated once a year to ensure that it is functioning properly and there is no
obstruction. Turn the power off to the unit before opening the relief valve, and make sure that water draining out of the
valve will not cause any damage.
• If the relief valve discharges periodically, it may be due to thermal expansion in a closed water system. Contact the
water supplier or a local plumbing inspector on how to correct this situation. Do not plug the relief valve.
• See Operation Manual for further maintenance.
WARNING
There is a scald potential if the output temperature is set too high.
Should overheating occur, or the gas supply fail to shut off, turn off the manual gas control valve to the appli
-
ance.
Do not use this appliance if any part has been under water. Immediately call a qualied service technician to
inspect the appliance and to replace any part of the control system and any gas control which has been under
water.
Periodically check and clean the lter inside the cold water inlet of the unit.
Chapter5.–InstallationCheck
Maintenance
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