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TROUBLESHOOTING
Fault Code F11
FALSE FLAME SIG F11
PUMP ON
Description:
There is flame when the unit control is not telling the unit to run. This code indicates a serious safety
issue and the unit will not restart until the cause is determined by a technician and he pushes the
RESET button on the display. The red light on the display illuminating the word LOCKOUT flashing on
the display. During this lockout fault, the pump will be on as indicated on the second line of the display.
Remedy:
1. Look into window. If there is flame, turn the gas off to the unit at the service valve and replace
the gas valve.
2. If the flame signal on the status menu is greater than 1.0 when the burner is not lit, replace the
spark ignitor and the flame rectification probe.
3. If the flame signal is not present after turning off the gas supply, check the gas valve electrical
connection.
4. Check for condensate backup. Repair the condensate system as necessary. If condensate has
partially filled the combustion chamber, the refractory wall may be damaged and should be
replaced.
5. Turn the gas on at the service valve after corrective action is taken.
Fault Code F13
FAN SPEED ERROR F13
PUMP ON
Description:
The fan is not running at the speed that the control has commanded it to run at. The fan speed had
been more than 30% faster or slower than the commanded speed for more than 10 seconds. This
code indicates a serious safety issue and the unit will not restart until the cause is determined by a
technician and he pushes the RESET button on the display. The red light on the display will illumi-
nate and the word LOCKOUT will be on the display. During this lockout fault, the pump will be on as
indicated on the second line of the display.
Remedy:
1. Check the combustion air fan wiring.
2. Measure the DC voltage from the red fan wire to ground while it is connected to the fan. It
should be between 24 to 40 volts. If it is lower than 24 volts, check for excessive external loads
connected to the Phoenix Evolution sensor terminals. Disconnect the 5 pin plug from the fan
and check the voltage on the red wire again. If it is now between 24-40 volts, replace the fan.
If it is still below 24 volts replace the boiler control board.
Fault Code.F31
PROGRAM ERROR F31
Description:
There was an error while programming the control. The control’s memory could be corrupt. The
boiler control will not function in this state and the pump will be off as indicated on the bottom line
of the display. The only way for this error to occur is while programming the control and the pro-
gramming function fails. The only way to recover from this error is to program the control again. If
PART 12: TROUBLESHOOTING (CONTINUED)
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