Option 2 - Whale Duo Control Panel
In the unlikely event of a failure, the red ‘!’ symbol on the Control Panel will light. To identify the lockout press and
hold the Water Heater Function Button. The temperature control bars will light to indicate the fault code e.g if 1 bar
lights, the fault code is 1, if 2 bars lights, the fault code is 2 etc. Identify the fault code and refer to the table below.
Table 4: Water Heater Fault Finding
Lockout Clearing Procedure
If the Water Heater lockout condition has been identified by
3, 4 or 5 flashes / bars lit
, the lockout
must be
cleared
by turning the d.c. power ‘off’ and then ‘on’ again at the master switch in the vehicle. If the first attempt is unsuccess-
ful, you can retry an additional 4 times. If the lockout still will not clear (identified by all bars lit), please press the red
Reset Button on the Water Heater for 1 second. The Reset Button can be found beside the drain valve (see Fig.
38B).
If the Water Heater lockout condition has been identified by
1 or 2 flashes / bars
or
all bars lit
, please press the red
Reset button for 1 second.
Number of
flashes /
Bars lit
Fault
Remedy
1
No Flame Detected
2
Overheat
3
Low/High Supply
Voltage
4
Air Proving
5
Other / Internal Fault
All bars lit
General Fault
Check gas supply making sure there is gas in the bottle and no blockage in
the gas line. At temperatures below 5°C, use propane gas rather than
butane. Clear lockout as described below. Check combustion air inlet flue
and exhaust flue for blockages.
Minimum operating voltage is 10V d.c., maximum is 15V d.c., when
measured at the Water Heater. Check battery voltage. If between 10V d.c.
and 15V d.c., check connections between Water Heater and battery. Check
alternator or external battery charging. Clear lockout as described below.
Check that there is water in the appliance. Whale recommends that you wait
at least 5 to 10 minutes to allow the Water Heater to cool before clearing
lockout as described below.
Check combustion air inlet flue and exhaust flue for blockages.
Attempt to clear lockout as described below. If this fails, contact
Whale
Support on +44 (0)845 217 2933.
Two faults have occured at the same time OR at least five lockout clearing
attempts have been unsuccessful. Clear lockout by pressing the red Reset
Button on the Water Heater as described below.
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