49-6000226 Rev. 7
19
TROUBLESHOOTING
Fault Codes
Wiring Diagram
Fault Code Displayed
Condition
Action
F10,12 or F20
Lower Heating Element Failure
Call Service to replace heating element
F11,13 or F21
Upper Heating Element Failure
Call Service to replace heating Element
F16/F17*
No Hot Water - Mixing Valve Outlet DC TCO Tripped
on EMV models or missing jumper wire on non-EMV
models.
Call Service to correct issue causing fault
F18*, F63* or F64*
Mixing Valve Failure
Call service to diagnose and repair
F19
Runaway Heat Source
Call Service to repair
F30
Tank Temperature (T1) Failure open/short
Call Service to replace sensor
F31
Tank Temperature (T2) Failure open/short
Call Service to replace sensor
F32 or F33
Tank Temperature, (T1 or T2) Failure
Call Service to replace required sensor
F38*
Mixing Valve Outlet Temperature (T6) Failure
Call Service to replace required sensor
F39*
Mixing Valve Cold Inlet Temperature (T7) Failure
Call Service to replace required sensor
F22 or F40
Current Sensor Failure
Call Service to diagnose and correct
F41#
Sensing Anode miswired
Confirm wire is connected to sensing anode
terminal. Call Service otherwise.
F44 or F45
Micro Fault
Call Service to repair
F70#
Anode Depleted
Call Service to replace sensing anode (see
anode replacement section in manual)
F71
AC Current Transformer Miswire
Call Service to diagnose and repair
F76
Voltage too low
Call Service for probable miswire
F77
Stuck Key Failure
Call Service to diagnose and repair
F90
E2 module unplugged or damaged
Call Service to diagnose and repair
F94
WiFi Board Failure (WiFi icon dark)
Call Service to diagnose and repair
* Applies to models with integrated mixing valve
# Applies to models with sensing anode
TC01(ECO)
HI LIMIT
(180F)
1
2
3
4
1
11
L1 L2
UPPER ELEMENT
LOWER ELEMENT
5500W 10.5
ё
~
22.9 A
5500W 10.5
ё
~
22.9 A
M403
M401
•
NO
•
COM
M402
•
NO
•
COM
•
NC
K402
BL
A
C
K
RE
D
BL
A
C
K
BL
U
E
RED
B
LUE
K401
•
•
•
•
••
••
••
••
••
•
T7
T6
MIXING
VALVE
TCO1
TCO1
AQUA
AQUA
RED
RED
ORANGE
AQUA
BROWN
YELLOW
RED
BLACK
BLACK
BLACK
BLACK
e2 Personality
module
J802
1
11
••
••
••
••
••
•
J802
J808
YELLOW
PURPLE
J801
•
•
•
•
•
•
T1
T2
BLUE
BLUE
RED
RED
6
1
• •
AN
O
D
E
J807
•
GND
GR
EE
N
RE
D
• •
J301
WH
IT
E
BLAC
K
SEN
SO
R
• •
J602
RE
D
WH
IT
E
WIFI
MO
D
U
LE
• •
NA
VY
BLUE
1
4
1
2
2
1
MAIN BOARD
J403
Non-EMV models: Use
J802 Jumper plug
(if equipped)
(if equipped)
Summary of Contents for GE50T BQT Series
Page 20: ...20 49 6000226 Rev 7 Notes NOTES...
Page 21: ...49 6000226 Rev 7 21 NOTES Notes...