Values for BEMS/ErrFlags

bit / Error number	code	Errflags2	description
0	E6		Outlet temperature sensor below 5 °C
1	E2		Communication error or invalid configuration
2	E1		No communication with unit
3	E7		Fan error(air speed sensor)
4	E3		Fan error (ptc sensor)
5	E5		Relay electric heating remains on
6	E4		Relay electric heating remains off
7	F2		Warm water valve remains open
8	F3		Warm water valve remains closed
9	F5		outlet temperature sensor error
10	F6		inlet temperature sensor error
11	F4		control panel temperature sensor error
12	F8		Air speed sensor error
13	F1		Air valve does not reach end position
14	F2		Cold water valve remains open
15	F3		Cold water valve remains closed
16	-	1	Filter dirty
17	-	2	no power
18	-	4	Battery outdoor sensor low
19	-	8	Battery indoor sensor low
20	F7	16	Outdoor Sensor fail
21	F11	32	Contact Sensor fail
22	F9	64	Outdoor RF fail
23	F10	128	Indoor RF fail
24	-	256	Filter dirt test