![background image](http://html1.mh-extra.com/html/midea/romstol-ecoheat/romstol-ecoheat_operation-manual_1791876063.webp)
60
Content
Remarks
H8
47
Pressure sensor fault
H9
48
Zone 2 water flow temp. sensor(Tw2) fault
Sensor TW2
HA
49
The plate heat exchanger water outlet temperature
sensor(Tw_out) fault
Sensor Tw_out
Hb
50
3 times PP protection and Tw_out<7
℃
Hd
52
Communication fault between master unit and slave
unit(in parallel)
HE
53
Communication fault between main board of hydraulic
module and Ta/room thermostat transfer PCB
HF
54
Inverter module board EE PROM fault
HH
55
H6 display 10 times in 120 minutes
HP
57
Low pressure protection (Pe<0.6) occurred 3 times in 1
hour in cooling mode
C7
65
High temp. protection of inverter module
bH
112
PED PCB fault
F1
116
DC bus low voltage protection
L0
134
DC compressor inverter module fault
L1
135
DC bus low voltage protection(from inverter module
mostly when compressor running)
L2
136
DC bus high voltage protection from DC driver
L4
138
MCE fault
L5
139
Zero speed protection
L7
141
Phase sequence fault
L8
142
Compressor frequency variation greater than 15Hz within
one second protection
L9
143
Actual compressor frequency differs from target
frequency by more than 15Hz protection
Unit
Register
address
Summary of Contents for romstol ecoHEAT
Page 23: ...20 2...
Page 24: ...21 15...
Page 33: ...30 6 2 3 Add Home Appliances 1 Add your device following the guidance...
Page 34: ...31 2 Operate the wired controller according to APP prompts...
Page 35: ...32 3 Wait for the home appliance to connect and click Sure...
Page 43: ...40 7 3 1 Structure size figure 19mm 84mm 44mm 46mm 60mm 120mm 20mm 120mm Figure A...
Page 64: ...NOTE...
Page 65: ...NOTE...
Page 66: ...NOTE...
Page 67: ......
Page 69: ...120 80 120 120 60...