7
Replacing the Anode
The Whale® replacement anode is Part # 75873.
• Drain tank fully and turn off power.
• To replace the anode, remove the drain
valve and the pre-installed sacrificial anode
(figure 6) and screw the new anode and
drain valve back in its place.
• Whale
® recommends checking the anode
regularly for signs of corrosion. If you have
any concerns about rapid corrosion, please
contact Whale® Support (Section 13).
The following service items are available for this Water Heater
from Whale
® (Figure 7).
Heating Element #75876 Relay #75878
High Heat Limit Switch #74607 Temperature and Pressure Valve #74659
Magnesium Anode #75873 Thermostat #73129
NOTE: Figure 7 depicts the internal
wiring of this Water Heater. For
advice on servicing any of
the highlighted components
please contact Whale
® Support
(Section 13) or a marine
electrician.
Note - If water is allowed to freeze in the system, serious damage to the pipe work and pump may occur. Failures of this
type will invalidate warranty. To best avoid this damage, completely drain the water system.
WARNING - The power source must be turned off before draining and refilling this Water Heater.
1. Drain the complete freshwater system either using the pump or a drain valve.
2. Open all the faucets (including the Water Heater drain valve) and allow pump to purge the water from the
system, and then turn the pump off.
3. Disconnect the pump and turn on to purge into an adequate basin. Only reconnect the pump when water system
is to be used.
4. Remember to leave all faucets including the Water Heater drain valve open to avoid any damage (except for
Whale Twist™ Deck Shower if installed).
Anode for use with
drain valve port
#75873
Hot water
outlet
Drain Valve
fitted to anode
Temperature
and
Pressure
valve
Cold water
inlet
Figure 6 - Replacing the anode
11. WINTERIZING
Figure 7 - Internal Wiring
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