39
Display Condition
H2O Sensor Fail Water temperature sensors open, shorted, or disagree
Aux Ctrl Fault 2 ROM CRC failure on companion board
Aux Ctrl Fault 3 RAM failure on companion board
Aux Ctrl Fault 5 A/D Reference failure on companion board
Aux Ctrl Fault 6 A/D Multiplexor failure on companion board
Aux Ctrl Fault 8 Unable to read time of day clock
Ign Ctrl Fault 2 ROM CRC failure on Ignition Control
Ign Ctrl Fault 3 RAM failure on Ignition Control
Ign Ctrl Fault 5 A/D failure on Ignition Control
Ign Ctrl Fault 6 Flame sense circuit failure on Ignition Control
Ign Ctrl Fault 7 Out of sequence execution detected on Ignition Control
Hi Water Temp Water temperature exceeded 108F
Remote Error Both Spa and Pool inputs are energized
Hi Limit 1 Fault High Limit 1 is open
Hi Limit 2 Fault High Limit 2 is open
Blocked Vent Vent/Field switch #1 is open
Vent Temp Limit Vent Temp Limit switch is open
Clock/Fireman Sw Clock/Fireman switch is open (Not stored in EEPROM)
Air Flow Sw Open Air Pressure Switch open with inducer on
Air Flow Sw Closed Air Pressure Switch closed with inducer off
5 Min Ind Off Inducer off for 5 minutes because the inducer’s interlock didn't close
Fan Lockout 3 fan switch faults within same heat demand cycle
Ignition Failure No flame detected within 4 seconds (Natural gas only, not stored in EEPROM)
Ign 60 min Delay Ignition trial failed 3 times in single call for heat (Natural Gas only, not stored in EEPROM)
Ignition Lockout Ignition trial failed on Propane
MV Output Fault Ignition control has detected problem with gas valve output
Flame w/o CFH Ignition Control is sensing flame present with gas valve closed
Low Temp Lockout Ignition Control has shut down heat because water temp < 36F
EEPROM Fault Corrupted data found on the Companion board
Ign EEPROM Fault Corrupted data found on the Ignition Control
Low Voltage Displayed when supply voltage < 20, no operational changes
Flue Over Temp Heater shut off because flue temperature is too high
Flue Sense Fail Flue Monitor is enabled and Flue temperature sensor is open or shorted
Blocked Drain Condensate drain switch is closed
Fan RPM Fault FAN RPM more than 500 RPM different than target
Table 11: Error Condition Messages
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