55
Index to troubleshooting guide.
The following is an index to possible control-related problems described on the following pages. To find
solutions, refer to either the problem number or the page number shown.
No. Description
1.
Green power indicator light is off ................... Page 56
2.
No remote fault indication .............................. Page 56
3.
No readable information on keypad/display ... Page 56
Faults
4.
Humidity transmitter fault .............................. Page 56
5.
Dew point transmitter fault ............................. Page 57
6.
Humidistat fault .............................................. Page 57
7.
VAV humidity transmitter fault ....................... Page 58
8.
Temp comp transmitter fault ........................... Page 58
9.
Fill fault .....................................................Page 58-59
10.
Drain fault ..................................................Page 59-60
11.
Low water timer fault ..................................... Page 60
12.
LL probe fault ............................................Page 60-61
13.
ML probe fault ...........................................Page 61-62
14.
Replace probes fault ..................................Page 62-63
15.
Probe assembly fault....................................... Page 63
16.
Temperature sensor fault ................................ Page 63
17.
Thermal trip fault ............................................ Page 63
18.
SDU fault ........................................................ Page 63
19.
EEPROM fault ............................................... Page 64
20.
Flue fault ......................................................... Page 64
21.
Burner No. fault .............................................. Page 64
22.
Ignitor No. fault .............................................. Page 65
23.
Blower No. fault ............................................. Page 65
24.
Slave No. fault ................................................ Page 65
Operation problems
25.
Control does not energize ............................... Page 65
26.
Unit does not fill with water ........................... Page 66
27.
Fill valve does not close ............................Page 67-68
28.
Reduced or no output ..................................... Page 68
29.
Fill valve cycles on and off frequently ........... Page 69
30.
Heater burnout ................................................ Page 69
31.
Noisy operation .............................................. Page 70
32.
Humidity below desired level ....................Page 70-71
33.
Humidity above set point ................................ Page 72
34.
Hunting ......................................................Page 72-73
35.
Unit does not perform autodrain sequence ..... Page 73
36.
Tank does not heat up ................................Page 73-74
37.
Unit does not perform auto-drain sequence .... Page 74
38.
Unit does not perform end of season drain ..... Page 75
39.
Humidifier tank has proper water level
and is always warm ......................................... Page 75
Operation
Operation:
Index to troubleshooting guide
VL3-IOM-0301-METRIC.pdf 59
11/19/2009 9:22:39 AM
Summary of Contents for Vapor-logic3
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Page 81: ...77 Operation Notes Operation Notes...
Page 82: ...78 Operation Notes Operation Notes...
