ALARMS

From RegConfig in Connect mode via cable or Web Connection mode it is possible to see all the available alarms by entering the Alarms page:

The alarm or alarms can also be viewed from the REG-DIN-8 display in the Information – Alarms//Bus Err. menu (see Annex I _ Parameter list).

The alarms could be a consequence of a bus error or not. In the second case, the Error bus light on the REG is off, while the red Alarm light is on. It is necessary to verify the cause (source in alarm, probe disconnected, overtemperature in the circuits, an OpenTherm generator in alarm, etc.). For those who have alarm notifications, they will receive an email with the active alarm.

Once the alarm has been resolved, the red light turns off without any further operations.

Attention

Errors from 16 to 23 (Circuit limit temperature) must be reset by switching the heat/cold enable off and on again or by switching off and on the power supply to the REG.

ALARM LIST
Code	Description	Code	Description
1	Outdoor Air Probe Error	57	C1 Water Pump B
2	DHW Probe Error	58	C2 Water Pump A
3	Buffer Tank Probe Error	59	C2 Water Pump B
4		60	C3 Water Pump A
5		61	C3 Water Pump B
6	TSP out of range	62	C4 Water Pump A
7	Comunicazione OT Caldaia KO	63	C4 Water Pump B
8	Circ. 1 Sensor	64	C5 Water Pump A
9	Circ. 2 Sensor	65	C5 Water Pump B
10	Circ. 3 Sensor	66	C6 Water Pump A
11	Circ. 4 Sensor	67	C6 Water Pump B
12	Circ. 5 Sensor	68	C7 Water Pump A
13	Circ. 6 Sensor	69	C7 Water Pump B
14	Circ. 7 Sensor	70	C8 Water Pump A
15	Circ. 8 Sensor	71	C8 Water Pump B
16	C1 Limit. Temp.	72	Source 1
17	C2 Limit. Temp.	73	Source 2
18	C3 Limit. Temp.	74	Source 3
19	C4 Limit. Temp.	75	UGW 8
20	C5 Limit. Temp.	76	UGW 9
21	C6 Limit. Temp.	77	UGW 10
22	C7 Limit. Temp.	78	OT Gen Alarm
23	C8 Limit. Temp.	79	All OT Gen Alarm
24	Zone 1 Sensor	80	Source 1 Probe
25	Zone 2 Sensor	81	Source 2 Probe
26	Zone 3 Sensor	82	Source 3 Probe
27	Zone 4 Sensor	83
28	Zone 5 Sensor	84
29	Zone 6 Sensor	85
30	Zone 7 Sensor	86
31	Zone 8 Sensor	87
32	Zone 9 Sensor	88	Free Alarm 1
33	Zone 10 Sensor	89	Free Alarm 2
34	Zone 11 Sensor	90	Free Alarm 3
35	Zone 12 Sensor	91	Free Alarm 4
36	Zone 13 Sensor	92	Free Alarm 5
37	Zone 14 Sensor	93	Free Alarm 6
38	Zone 15 Sensor	94	Free Alarm 7
39	Zone 16 Sensor	95	Free Alarm 8
40	Zone 17 Sensor	96
41	Zone 18 Sensor	97
42	Zone 19 Sensor	98
43	Zone 20 Sensor	99
44	Zone 21 Sensor	100
45	Zone 22 Sensor	101
46	Zone 23 Sensor	102
47	Zone 24 Sensor	103
48	Zone 25 Sensor	104	S1 Solar Probe
49	Zone 26 Sensor	105	S2 Solar Probe
50	Zone 27 Sensor	106	S3 Solar Probe
51	Zone 28 Sensor	107	S4 Solar Probe
52	Zone 29 Sensor	108	S5 Solar Probe
53	Zone 30 Sensor	109	S6 Solar Probe
54	Zone 31 Sensor	110
55	Zone 32 Sensor	111
56	C1 Water Pump A

BUS ERRRORS

The System provides a bus error signal by turning ON the yellow led on the REG-DIN-8.

If both alarms (red light on) and bus errors (yellow light on) are present on the REG-DIN-8, it is necessary to solve the bus error first as it could be the cause of the alarm. For example, if there were a communication problem with the REG-IOA expansion module to which the TP probe of zone 1 is connected there would be both a bus error (because the REG-DIN-8 and the REG-IOA do not communicate ), but also alarm 24 relating to the failure to read the temperature of zone 1. Once the bus error is resolved, the alarm is also resolved.

For more info about bus error trouble shooting see BUS REG WIRING BEST PRACTICE.