IKONIC Tankless Water Heater Service Manual
45
ERROR A029
EXPLANATION
Condensate blockage
This water heater has a built in condensate trap. If the
electrode on the condensate trap detects the water level
is full, or cannot detect the water level in the condensate
trap the water heater displays the “A029” error code on
the User Interface.
Diagnostic check items
• External condensate trap.
• Drain line from unit condensate trap.
Turn Power OFF
Remove the drain plug of condensate trap
located bottom of the water heater, and drain
the water in the condensate trap.
Drain some water and reinsert the drain plug.
And then, turn power ON and operate the unit.
Remove the drain line connected to the
condensate plug of condensate trap located
at bottom of the water heater, and turn on
the unit.
Did "A029" error code appear?
Unit has a loose connection.
Unit appeared to be operating OK.
Remove the connector for the condensate
trap located next to the trap behind the
control board.
And then, turn power ON and operate the
unit.
The drain line of the condensate trap has a
blockage.
Replace condensate trap.
Replace control board.
The drain line connected condensate trap has
a blockage.
Please recheck the drain line to remove the
blockage.
Reconnect condensation trap connector.
And then, turn power ON and operate the
unit.
Did "A029" error
code appear?
Did "A029" error
code appear?
Is the water drained
from the conden-
sate plug?
Yes
No
Yes
Yes
No
Yes
No
No
ERROR CODE DIAGNOSTICS
Condensate Drain
(Only on re-
circulation
models)
Condensate Drain
Water
Filters
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