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TROUBLE SHOOTING GUIDE
ERROR CODES
DISPLAYED
NOTIFICATION
DESCRIPTION
MESSAGE
Outlet Temperature
A70
too high
Intel or outlet tempera-
A74
ture below freezing
Inlet thermistor
b00
disconnected
Both thermistors
b10
disconnected
Outlet thermistor
c05
Disconnected
Flow too high, inlet
d85
temperature too low
SPARE PARTS
ITEM NO.
1
Inlet manifold sub-assembly 12kw
2
Outlet manifold sub-assembly for 12kW
3
Inlet manifold w/ sensors & flowmeter sub-assembly for 18/27kW
4
Outlet manifold w/ sensors sub-assembly for 18/27kW
5
Gaskets pack for 12kW
6
Gaskets pack for 18/27 kW
7
Heat Element replacement kit for 12kW
8
Heat Element replacement kit for 18kW
9
Heat Element replacement kit for 27kW
10
Thermistors kit for 12kW
11
Thermistors kit for 18/27kW
12
Flowmeter & sensor replacement kit for 12kW
13
Flowmeter & sensor replacement kit for 18/27kW
14
Kit for 12kW
15
Kit for 18kW
16
Kit for 27kW
17
Triac Kit with yellow plug wiring for 12kW
18
Triac Kit with red plug wiring for 12kW
19
Triac kit with yellow plug & wiring for 18kW
20
Triac kit with red plug & wiring for 18kW
21
Triac kit with yellow plug & wiring for 27kW
22
Triac kit with red plug & wiring for 27kW
23
Triac kit with blue plug & wiring for 27kW
24
Spare PCBA for 12kW
25
Spare PCBA for 18kW
26
Spare PCBA for 27kW
27
Transformer for 12 kW
28
Transformer for 18/27kW
CONT.
CAUSE
Outlet temperature is >
(setpoint + 20°F)
Inlet or outlet temperature
< 35°F
Inlet temperature < 0°F
Inlet and outlet
temperature < 0°F
Outlet temperature < 0°F
Power demand > 100%
or unit capacity
PART NAME (TOP LEVEL)
15
UNIT BEHAVIOR
Unit turns off power to the heating element until outlet
temperature is less than setpoint. This notification is
disabled if c05 or b10 notifications are present
Unit turns off power to the heating element until both
inlet and outlet temperature > 35°F
Unit keeps heating with assumed 65°F inlet temperature
Unit keeps heating with assumed 65°F inlet
temperature, flow and latest self-calibration
Unit keeps heating with assumed 65°F inlet
temperature, flow and latest self-calibration
Unit continues to operate, however set temperature
will not be reached
EEMAX PART NUMBER
EX78033-00
EX78034-00
EX78033-01
EX78034-01
EX78035-00
EX78035-01
EX78038-00
EX78038-01
EX78038-02
EX78039-00
EX78039-01
EX78040-00
EX78040-01
EX78041-00
EX78041-01
EX78041-02
EX08001-03A
EX08001-03B
EX08001-04A
EX08001-04B
EX08001-05A
EX08001-05B
EX08001-05C
EX09100-350
EX09100-356
EX09100-357
EX08209-03
EX08209-04
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