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4
Second attempt by the PCB to increase the
airflow rate to balance the air-fuel mixture.
5
Is the ODS thermocouple detecting normal
temperatures?
6
Third attempt by the PCB to increase the airflow
rate to balance the air-fuel mixture.
7
Is the ODS thermocouple detecting normal
temperatures?
8
Final attempt by the PCB to increase the airflow
rate to balance the air-fuel mixture.
NOTE
Shutdown by imperfect combustion can be reset by pressing power switch (ON/OFF Button). If
shutdown occurs 5 times within 4 hours, the water heater will not recover for the next 4 hours.
How to Reset the Four (4) Hour ODS Timer
1. Turn the unit OFF. Remove the front cover. Locate the dip switches on the control board.
2. Make sure all the dip switches are OFF (down position).
3. Locate the #2 dip switch and turn it ON (up position) then immediately turn it off.
4. Within 5 seconds, press and hold both the MIN and MAX button for at least 2 seconds.
5. The remote control will flash briefly. This is your signal that the fault history has been cleared.
6. You can operate the machine.
Overheat Film Wrap
The Overheat Film Wrap detects the heat
exchanger if and when it overheats. The over
heat limiter is the plastic film wrap with the
black squiggly lines.
It constantly monitors the heat exchanger
temperature and will show an Error Code 14
in the event the heat exchanger gets too hot.
No
No
No
SVC 810 Tankless Troubleshooting Manual
PCB continues to try to fix the air-fuel mixture
my adding airflow. It now adds a visual alarm on
the Remote Control by flashing both the red and
green indicators.
Yes
Unit is operating normally.
PCB continues to try to fix the air-fuel mixture
by adding airflow. It now adds an audible alarm
on the Remote Control by sounding a tone every
60 seconds and flashes a monitor code of 05.
Yes
Unit is operating normally.
If the unit does not detect normal ODS
thermocouple temperatures, then unit will shut
down with an error code of 13.
9
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