Rheem IKONIC RTGH-S11i Training And Service Manual page 51

ERROR CODE DIAGNOSTICS
2.2 ERROR CODE LIST
A061 ERROR CODE
This water heater checks the RPM signal after the fan
stars to run.
If the RPM signal is incorrect after the fan to run, the
water heater displays the "A061 " error code on the
User Interface.
Turn Power OFF
Remove and reinsert connector "D" on the
control board and connector on the blower
motor.
Turn power ON and operate unit.
Is "A061" error
code appeared?
Yes
Test DC voltage between #6 wire (White) &
#4 wire (Blue)
Is the voltage
144-192 DC
volts?
Yes
Turn off gas and water to the water heater
Setting the operating mode "2H" (see the
section "1.4.2 Setting the operating mode"
in this manual)
Open all water fixtures and Test DC voltage
between #3 wire (Red) & #4 wire (Blue).
Unit has a loose con-
No
nection
Unit appears to be
operating
Check connector "D",
and operate unit again.
No
If "A061" error code
is appeared, replace
blower motor.
51
IKONIC Tankless Water Heater Service Manual
Diagnostic check items
• Blower motor
Is the voltage
12-18 DC Volts?
Test DC voltage between #1 wire (Yellow) &
#4 wire (Blue)
Is the voltage
4-10 DC volts?
Yes
Turn off gas and water to the water heater.
If "A061" error code is appeared, Replace
control board and blower motor.
IMPORTANT
DO NOT cross any of the wires while perform-
ing these checks.
Check connector "D"
and operate unit again.
No
If "A061" error code
is appeared, Replace
Yes
Check connector "D",
and operate unit again.
No
If "A061" error code
is appeared, replace
control board.
blower motor.