Williamson-Thermoflo FreeStyle 2 Series Manual page 95

FreeStyle
Series 2 wall mount gas-fired water boiler — Boiler Manual
37 Troubleshooting
Figure 120
Blocking codes
there is also an "F
Table 4
F
F07 The Exhaust gases temperature is too high.
F10 The CH supply water temperature sensor 1 error.
F11 The CH return water temperature sensor error.
F12 The DHW water temperature sensor error.
F13
The Exhaust gases temperature sensor error.
F14
The CH supply water temperature sensor 2 error.
F15 Minimum and maximum frequency feedback from fan error.
F20 The water pressure in the CH installation is near the low level.
F21 The water pressure in the CH installation is near the high level.
F27 The exhaust gas temperature is too high (PVC/CPVC/Polypro/AL29-4C - selection).
F34 Low mains voltage.
F35 Frequency error.
F37 The water pressure in the CH installation is too low.
F39
Outside sensor error.
F40
The water pressure in the CH installation is too high or there's a Control fault.
F43
Heat exchanger protection.
F47 Water pressure sensor not connected.
F50 Variable input switch contact opened.
F51 Low water error.
F52 Too high difference between two CH supply water temperature sensors.
F53 High limit thermostat input error.
F64 5 MicroCom reset in 15 minutes time frame.
F66 Software doesn't match.
Part number 550-142-950/0919
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FreeStyle
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