Errors

- select code -
1
10
100
105
106
107
108
109
11
110
111
113
119
12
122
123
128
129
13
130
131
132
137
149
15
150
154
155
156
157
158
159
16
160
161
164
165
17
172
174
175
176
178
18
184
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187
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189
19
192
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199
2
20
200
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203
204
205
207
21
210
211
212
213
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215
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218
219
22
220
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223
224
225
226
227
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229
23
230
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235
236
237
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239
24
240
25
26
27
28
29
3
30
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32
33
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39
4
40
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43
44
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49
5
50
51
52
53
59
6
61
62
63
64
67
68
7
70
78
79
8
80
81
82
9
91
92
93
94
95
96
97
98
99

Boiler type Magnatherm MGV4000

Error code 128

Cause:

Fan speed failed during prepurge

Solution:

- Check wiring and correct any potential wiring errors.
- Check the VFDs (Variable-speed Fan Drive) ability to change speeds.
- Change the VFD
- If the fault persists, replace the module.