e)Internal Booster Tank Water Level Error 2 (Internal Booster Tank Water Level Float Switch Open) (o2)
•If the internal booster tank water level float switch is open and the internal booster tank backup water level float switch has remained closed for 1 minute, the internal booster tank heaters
•The error resets if the internal booster tank backup water level float switch opens or when the "ON/OFF" button is used to turn the unit off and then back on.
•See the chart below for possible causes and remedies.
Code
o 2
Error
Internal booster tank water level float switch is open and internal booster tank backup water level switch has remained closed for 1 minute.
Operation
Continues (internal
booster tank heater off).
Item
Internal Booster Tank
Water Level Float
Switch
Internal Booster Tank
Backup Water Level
Float Switch
Possible Cause
Sticking.
Open circuit.
Defective.
Sticking.
Remedy
Check and clean. See “III.D. Float Switch Check and Cleaning.”
Repair or replace.
Replace.
Check and clean. See “III.D. Float Switch Check and Cleaning.”
Defective.
Replace.
Control Board
Connector not properly connected.
Reconnect.
Defective.
Replace.
Note: See “III.D. Float Switch Check and Cleaning.”
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