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E. Timing Chart
1. Auto Fill Cycle
"ON/OFF" Button ON
OFF
"AUTO FILL" Lamp ON
OFF
"READY" Lamp ON
OFF
"WASH" Lamp ON
OFF
Service Panel Switch CLOSED
OPEN
Rinse Pump ON
OFF
Water Valve ON
OFF
(Repeat)
Water Level Float Switch CLOSED
OPEN
Backup Water Level
Float Switch
CLOSED
OPEN
Water Level Safety Float
Switch
CLOSED
OPEN
Booster Tank Thermistor Setpoint
Booster Tank Heater ON
OFF
Water Level Sensor CLOSED
OPEN
Buzzer ON
OFF
Wash Tank Heater ON
OFF
* Factory default, adjustable by service men
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If the booster tank water level float switch does not close after 10 minutes in booster tank auto fill, error code "A2" (booster tank auto
fill error) appears in the display, and the unit shuts down.
Note 3:
Note 1:
Note 2:
Booster tank auto fill delay time (*10 seconds): If auto fill cycle starts immediately after the booster tank water level float switch opens,
the booster tank fills up too soon, and the water valve energizes/de-energizes frequently, resulting in no hot water supply.
After the rinse pump motor de-energizes, there is a 5-second dwell time to stabilize the water level before checking the water level
sensor status.
Auto Fill Cycle Rinse Time (*13 min) 2 gal (7.8L)/min x 13 min = 20 gal (101L)
Approx. 13 gal (50L) water level
Note 2
Note 1 Note 1
Note 3
Booster Tank
Service menu item 03