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Code
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Event
Water In Temp. Probe
142
Failed/Disconnected
Event
Water Out Temp. Probe
143
Failed/Disconnected
Event
Outdoor Air T. Probe
144
Failed/Disconnected
Event
C2 Water Out T. Probe
145
Failed/Disconnected
Event
Hot Water Temp. Probe
146
Failed/Disconnected
Event
Sup. Exp. Temp. Probe
147
Failed/Disconnected
Event
Heaters Overheating or
150
Heaters Contactor Fail
Event
Fan 1
151
Offline
Event
Fan 2
152
Offline
Event
Fan 3
153
Offline
Event
Fan 4
154
Offline
Event
Fan 5
155
Offline
Event
Fan 1
156
Phase Fault
Event
Fan 2
157
Phase Fault
Event
Fan 3
158
Phase Fault
Event
Fan 4
159
Phase Fault
Version 38
Details
A142
Cold water temperature probe fault.
A143
Circuit 1 outlet cold water temperature
probe fault
External air temperature probe faulty.
A144
Visible only on units with Direct Free
Cooling.
A145
Circuit 2 outlet cold water temperature
probe fault
Hot water temperature probe fault.
A146
Visible only if water post-heating is
present.
A147
Delivery temperature probe on expansion
fault
Heater safety thermostat engagement.
A150
Visible only if the unit is configured with
heating elements.
No communication with fan 1.
A151
Visible only if the unit has at least one EC
fan.
No communication with fan 2.
A152
Visible only if the unit has at least one EC
fan.
No communication with fan 3.
A153
Visible only if the unit has at least one EC
fan.
No communication with fan 4.
A154
Visible only if the unit has at least one EC
fan.
No communication with fan 5.
A155
Visible only if the unit has at least one EC
fan.
Incorrect phase sequence for fan 1.
A156
Visible only if the unit has at least one EC
fan.
Incorrect phase sequence for fan 2.
A157
Visible only if the unit has at least one EC
fan.
Incorrect phase sequence for fan 3.
A158
Visible only if the unit has at least one EC
fan.
Incorrect phase sequence for fan 4.
A159
Visible only if the unit has at least one EC
fan.
Event
Reset Time Position Action
Time
A
A
U
A
A
U
A
A
U
A
A
U
A
A
U
A
A
U
A
M
U
A
A/M
U
A
A/M
U
A
A/M
U
A
A/M
U
A
A/M
U
A
A/M
U
A
A/M
U
A
A/M
U
A
A/M
U
FN
FC
Ind
FN
FN
FC
FN
CW
FN
EH
CI/-
CI/-
CI/-
CI/-
CI/-
CI/-
CI/-
CI/-
CI/-
121
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