IKONIC Tankless Water Heater Service Manual
50
ERROR A036
EXPLANATION
Exhaust Thermistor Malfunction.
Diagnostic Check
Exhaust Thermistor.
ERROR CODE DIAGNOSTICS
Turn Power OFF
Replace exhaust thermistor.
Replace wiring harness for connector “I”.
Remove control board bracket to access inlet
thermistor Molex.
Locate & separate RED Molex. Check resis-
tance across White wires on female end of
Molex.
Reconnect Molex.
Check resistance on connector “I” between
#5 wire (Black) & #4 wire (Red)
Reinsert connector “I”.
Operate the unit.
If error code "A036" appears:
REPLACE CONTROL BOARD.
The resistance is
7K - 23K Ω?
The resistance is
7K - 23K Ω?
No
No
Yes
Yes
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