MHS Boilers EURON 24, Инструкция по установке и эксплуатации, Страница: 35 / 49

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Locking
Display Internal Code (bO) Cause
91 EEPROM failure
92 Hardware failure of electronic circuit board
110 129 Activation of thermostats for underfloor heating
110 422 Locking because of over heating
113 506 Activation of flue gas sensor
133 102 Locking because of gas failure
151 Internal locking of circuit board
151 97 Flame at atart of reset phase
152 Failure in programming
153 259
Reset Button pressed when boiler not in fault
154 425 Flow temperature rising too rapidly or no circulation
160 83 On ignition necessary fan speed not achieved
160 282 Blocked Fan
161 110 Measured fan speed above upper limit
183 105 Circuit board in programming mode
Safety cut-off
Display Internal Code (bO) Cause
20 142 Short circuit in heating supply sensor
20 143 Heating supply sensor circuit open
40 144 Short circuit in heating return sensor
40 145 Heating return sensor circuit open
50 146 Short circuit in service water or water tank sensor
50 147 Service water or tank sensors circuit open
111 141 Flow temperature above temperature limit (90 °C)
119 140 Low Water Pressure
135 84 Quantity of fan revolutions not correct
154 401 Return temperature greater than flow temperature
154 433 At Supply and return too high
Service and Maintenance
Error Codes