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22
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
Troubleshooting Tips
Save time and money! Review the charts on
the following pages first and you may not need
to call for service.
Before You Call For Service…
Problem Possible Causes What To Do
Not enough Check valve error codes. ● Refer to gas valve error code table on next page.
hot water
“ON/OFF” switch turned off. ● Turn on.
Blower unplugged. ● Plug in. Verify power supply (120 VAC).
Temperature setting too low. ● Turn to a higher temperature setting.
Heater undersized. ● Reduce hot water consumption or replace heater.
Yellow flame Scale on top of the burner. ● Shut off the water heater and remove scale.
or sooting
Combustion air inlets or flueways ● Remove lint or debris and inspect air inlet.
restricted.
Not enough combustion or ventilation ● Refer to “Combustion and Ventilation Air” in
air supplied to the room. “Installing the water heater” section.
Rumbling noise Scale or sediment in tank. ● Clean tank–See “Care and cleaning” section.
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