MHS Boilers Ultramax 115, Руководство по эксплуатации и техническому обслуживанию, Страница: 37 / 46

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011204 37
minutes active. The boiler can be nevertheless in operation.
1
The high limit thermostat has operated. The boiler temperature has exceeded 100
°
C. Press
the reset button.
2/3
The interlocking input has been interrupted. Correct the external error and press reset.
4
Flame signal fault. No flame detected at burner start. One restart possible. Correct fault and
press reset.
5
Flames go out during operation. If this fault occurs 3 times within 6 minutes, the fault becomes
interlocking. Correct the fault and press reset.
6
Temperature protection has operated. The boiler temp. has exceeded the setting. Press
reset.
7
The lockout input has been interrupted. Correct the external fault and press reset.
11
Error in flame signal. A flame has been detected during start-up. Correct the fault and press
reset.
12
Flow temperature sensor is faulty. Correct fault.
13
Wiring of the CXE/EM extension module is defective. Correct fault.
14
Hot water temp. sensor is defective. Correct fault.
15
External temp. sensor is defective. Correct fault.
18
Header temp. sensor is defective. Correct fault.
20
Error in the control of gas valve 1. After burner has stopped a flame has been detected for a
period of 5 seconds. This in spite of the fact that valve has been sent a close signal. Correct
fault.
21
Error in the control of gas valve 2. After burner has stopped a flame has been detected for a
period of 5 seconds. This in spite of the fact that valve has been sent a close signal. Correct
fault.
22
Air flow too low. The air pressure switch has not operated during pre-purge. Correct fault
and press reset.
23
The air pressure switch has not switched off. Press reset.
24
The fan does not reach the set speed during pre-ventilating. Correct fault.
25
The fan does not reach the set speed during ignition. Correct fault.
26
The fan does not come to a standstill. Correct fault.
27
The air pressure switch switched off during operation.
30
CRC error in EEprom data group “Boiler”. Press reset.
31
CRC error in EEprom data group “Burner”. Press reset.
32
Fault in 24 V circuit. Correct fault.
40
Error detected in the position of the flow switch. Correct fault.
X.Y.
An internal fault has been detected during the self-test. Press reset.