Raypak AVIA 264A Installation And Operation Manual page 35

The following conditions are displayed in Pool, Spa and
Remote modes when there are active fault conditions.
Display
Water Inlet thermistor temperatures
In Sensor Fault
disagree by more than 3°F (1.5°C).
Water Inlet thermistor sensor failed
In Sensor Open
open. Below 6°F (-14°C).
Water Inlet thermistor sensor failed
In Sensor Short
short. Above 188°F (86.5°C).
Water Outlet thermistor sensor failed
Out Sensor Open
open. Below 6°F (-14°C).
Water Outlet thermistor sensor failed
Out Sensor Short
short. Above 188°F (86.5°C).
Flue temp sensor failed open. Above
Flue Sensor Open
464° F (240°C).
Flue temp sensor failed short. Below
Flue Sensor Shrt
7.5°F (-13.5°C).
When equipped, Flow sensor
Flow Sensor Fail readings are out of range (0 to 100
GPM).
Board is sensing flame when gas
Flame w/o CFH
valve is commanded shut.
Gas valve is sensed to be ON when
Gas Valve Fault commanded OFF. 60-min. soft
lockout.
When equipped, Pump Control
Pump Ctl Fail is enabled but not responding to
commands.
When equipped, Chemistry board
WChem Brd Fail
is enabled but not responding to
commands.
Control is sensing Differential
Diff Sw Closed pressure switch closed when Fan is
not commanded.
Fan is commanded for 10-seconds
Diff Sw Open
without differential switch closing.
Internal Fault or Memory fault. Reset setpoints or
EEPROM Fault replace board if fault does not clear.
Time clock/fireman switch circuit is
Clock/Fireman Sw
open.
Low Temp Water temperature is below 36°F
Lockout (2°C).
Controller is receiving supply voltage
Low Voltage
below 17 VAC.
Table P. Heater Status Messages - Active Faults
Condition
The following conditions are displayed only while there is a
demand for heat present.
Display
Flame Lost Flame was not detected.
Water Sw Open Water pressure switch open.
Vent Sw Open
Vent switch #1 open.
High-Temp. limit 1 open. Press MODE
Hi Limit 1 Fault
key to remove lockout.
High-Temp. limit 2 open. Press MODE
Hi Limit 2 Fault
key to remove lockout.
Cabinet Temp Lm
Cabinet Temp. limit open.
Air SW Open Air pressure switch open.
3 air switch faults within same heat
Fan Lockout demand cycle. Power must be cycled
to clear the fault.
Differential Pressure switch failed
Diff Sw Fault
open.
Unit failed to ignite on first or second
Ign Try Failure
try.
Gas valve failed 3 times in single call-
Ign 60 min Delay
for-heat. Unit is locked out for 60-min.
When available, Single-try ignition
Ignition Lockout failed and Lockout. Power must be
cycled to clear the fault.
Flue temperature was higher than
Flue Over Temp 390°F (199°C). Power must be cycled
to clear the fault.
While Remote mode is active, both
Remote Wire Err
Spa and Pool inputs are energized.
Outlet Temp was higher than 180°F
Outlet Over Temp
(82.0°C).
Low flow conditions are detected in the
Low Flow Fault
heater. Possible scaling.
High flow conditions are detected in
High Flow Fault
the heater. Possible condensation.
Flue temperature is below 175°F
Flue Low Temp
(79.5°C). Warning: Possible
condensation.
Flue temperature is below 140°F (60
Flue Extreme Low °C). Service required. Press MODE to
remove lockout.
Fan Lockout, Ignition Lockout or Flue
Extreme Low Temperature occurred
Call Service
3-times in 48-hours. Contact Service
support.
Table Q. Heater Status Messages - Demand for Heat
See Troubleshooting guides, on pages 48 and 49 for
diagnosis.
Condition
35