A.O. Smith TWI 35-200, Installation, User And Service Manual

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Button Function
[ ] Scroll up / Raise
[ ] Scroll down / Lower
3.2 Status of the water heater
During operation, the display shows the status of the water heater.
Fig. Display
MENU
Tank Temperature
Operating Setpoint
Status: Stand-by
60°C
60°C
The following status texts can appear on the display:
Status text Explanation
Stand-by The water heater is not heating because there is
no heat demand.
OFF Stand-by (water temperature drops). The control
switch is set to 0.
Pre-Purge The ventilator ventilates the combustion chamber.
Spark plug activated The spark plug starts to spark.
Gas valve on The gas valve is open.
Flame verification A flame is detected.
Inter-Purge After ignition has failed and before a new attempt,
the combustion chamber is ventilated.
Heating The water heater is heating up water.
Post-Purge The combustion chamber is ventilated after a
heating cycle.
Error The controller has detected an error.
Error - Water heating
disabled
The heating cycle is stopped because the controller
has detected an error
Error - Post-Purge An error is detected and the combustion chamber
is ventilated.
0313279_TWISTER II_UKUK_
V1.1, 18-02-2019
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