IKONIC Tankless Water Heater Service Manual
49
ERROR A035
EXPLANATION
Improper thermistor connection
This tankless water heater has three thermistors (Inlet,
Outlet and Heat exchanger thermistor)
If one or more possibly has a poor connection or not con-
nected in proper location, the water heater displays the
“A035” error code on the Liquid Crystal Display (LCD) on
the User
Diagnostic Check
• Inlet thermistor
• Outlet thermistor
• Heat exchanger thermistor
• Exhaust Thermistor
ERROR CODE DIAGNOSTICS
Turn Power OFF
Remove & reinsert connector "I"
Unit had a loose connection.
Thermistors appear to be OK.
Unit had a loose connection.
Thermistors appear to be OK.
Remove and reinsert each thermistor molexes
connector. The color of each molexes are
below:
Inlet thermistor: White
Outlet thermistor: Black
Heat exchanger thermistor: Yellow
Exhaust Thermistor: Red/Black
Test ALL thermistor.
Follow instructions for:
A031-Error code
A032-Error code
A033-Error code
A036-Error code
Does A035 Error
code appear?
Does A035 Error
code appear?
Yes
No
No
Yes
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