6-6
GETTING STARTED
Diagnostic Codes
To aid with troubleshooting the LED on the back of the Watermaster IC has a number of different flash
codes as described in the table below:
LED State Description
Green Constant On Tap open, pump running
Green Fast Flash (< 1 sec) In Calibration Mode
Green 200ms blink every 5 sec Calibrated and ready for use
Green 200ms blink every 10 sec Un-calibrated
Green 200ms blink every 15 sec Suspended due to dry run need to turn pump switch on and
off
Green 200ms blink every 20 sec Suspended due to low battery voltage, turn pump switch on/
off, need to charge battery
Winterising
Watermaster IC does not require any additional winterizing. For details of how to drain your water
system for winterizing please see www.whalepumps.com/rv.
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