IKONIC Tankless Water Heater Service Manual
38
ERROR A011
EXPLANATION
Flame Not Detected From Flame Rod.
In the case of ignition failure, the water heater will at-
tempt ignition 10 times (Including the post purge every
3 times).
If no flame is detected, the water heater displays the
"A011" error code on the User Interface.
Diagnostic Check
• Gas supply pressure
• Gas lter
• Air lter
• Venting
• Igniter rod
• Flame rod
• Gas air ratio valve
• Solenoid valve (SV)
Check Method
Gas supply pressure
1. Check the gas supply pressure and regulator at the
gas connection of the water heater.
The correct gas pressures are below;
• Natural Gas (NG); 4.0”-10.5” W.C
• Liquid Propane (LP); 8.0”-13.0” W.C
2. While the static pressure is normal, the use of an-
other gas appliance may cause a possible drop to the
water heater. Therefore, it is required to check static
and dynamic gas pressure.
• Static pressure: Gas pressure during standby
• Dynamic pressure: Gas pressure at max combustion
Gas Filter
Check the gas lter at the gas connection of the water.
Ensure the lter is not blocked by some foreign sub-
stance.
If the gas lter is blocked by something, clean the gas
lter and remove the cause.
ERROR CODE DIAGNOSTICS
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