Watts AERCO Edge [ii] - Page 189

Edge [ii] Controller Operation Manual
SECTION 10 – STARTUP, STATUS, FAULT MESSAGES
OMM-139_E • 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 189 of 196
TABLE 10-1: Edge Controller Fault Messages
#
FAULT MESSAGE
DESCRIPTION
TYPE
40
Remote Setpt Signal Fault
The Remote Setpoint signal is not present or is
out of range.
Fault
41
Outdoor Temp Sensor Fault
The temperature measured by the Outdoor Air
Sensor is out of range.
Fault
42
Outlet Temp Sensor Fault
The temperature measured by the Outlet Sensor
is out of range:
• OUTLET TEMPERATURE display = Sht
Indicates sensor is shorted
• OUTLET TEMPERATURE display = Opn
indicates sensor is open-circuited
Fault
43
FFWD Temp Sensor Fault
The temperature measured by the Feed Forward
(FFWD) Sensor is out of range.
Fault
44
High Water Temp
The temperature measured by the Outlet Sensor
exceeded the Temp Hi Limit setting.
Fault
45
Line Voltage Out of Phase
The Line (Hot) and Neutral wires are reversed.
Fault, Manual
Reset
46
Stepper Motor Failure
The Stepper Motor failed to move the Air/Fuel
Valve to the desired position.
Fault, Manual
Reset
47
Setpoint Limiting Active
Outlet temperature crossed the high setpoint
limit. Setpoint limiting feature is active.
Fault
48
Modbus Comm Fault
A network communication fault
Fault
49
Wait Ignition Retry
The unit is waiting before retrying to ignite.
Message
50
WaitFault Purge
Fault while purging.
Message
51
Wait Retry Pause
Pause before retrial for ignition.
Message
52
Exhaust Temp Sensor Short
The Exhaust Temp Sensor has malfunctioned.
Warning
53
Exhaust Temp Sensor Open
Exhaust Temp Sensor is not connected or
malfunctioned.
Warning
54
Warning Exhaust Temp High
The Exhaust temperature is above normal.
Warning
55
Exhaust Temp High
The Exhaust Temperature has exceeded 200°F
(93.3°C).
Fault, Manual
Reset
56
Inlet Water Temp Sensor Short
Inlet Water Temp Sensor has
malfunctioned/shorted out.
Warning
57
Inlet Water Temp Sensor Open
Inlet Water Temp Sensor is not connected or
malfunctioned.
Warning
58
Warning In Wtr Temp High
Warning: Inlet water temperature is above
normal.
Warning
59
Warning In Wtr Temp Low
Warning: Inlet water temperature is below
normal.
Warning
60
Inlet Gas Press Sensor Open
Inlet Gas Pressure Sensor is not connected or
malfunctioned.
Fault
61
Gas Plate Dp Sensor Open
Gas Plate Dp Sensor is not connected or
malfunctioned.
Fault
62
O2 Percentage Low
The O2 % has gone below 2% for more than 30
seconds
Fault
63
O2 Sensor Malfunction
Indicates O
2
Levels are less than -4% or more
than 24% for more than 10 seconds.
Fault
64
Warning O2 Level High
The O
2
is above normal operating limits.
Warning
65
Recirc Pump Failure
The recirculation pump has failed.
Fault, Manual
Reset