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Tankless Troubleshooting Manual
Explanation: Fan Motor Current fault. Fan motor does not work properly. At a minimum check
the following:
1. Ensure fan motor will turn freely. Motor will operate with a small amount of restriction.
2. Check fan motor for presence of moisture of condensation.
3. Check wiring harness to motor for damaged and/or loose connections.
See and follow the same procedure as used in Error Code 61.
Explanation: Combustion Fan failure. Fan motor does not work properly. At a minimum check
the following:
5.
6.
7.
8.
Ensure fan motor will turn freely. Motor will operate with a small amount of restriction.
Check there is some volume of air from the flue outlet at the top of the heater.
Check wiring harness to motor for damaged and/or loose connections.
Check Molex connections of the PCB.
No
Does the Fan
Motor have
sufficient
voltage?
Does the Fan
operate?
No
Replace Printed Circuit
Board
Yes
The water heater appears to be
normal. Attempt to operate
again.
Yes
%
Is there any
pulse output
from the Fan
Motor?
'
Replace Fan Assembly
Yes
+
(
,
/
0
.
(
0
(
%
1
$
*
.
(
+
&
-
2
%
(
(
'
"
%
!
%
No
61
"
$
#
)
Replace Printed Circuit Board
&