Page 44
ECS 2M
SYMPTOM
CAUSE and REMEDY
Lo is
continually
displayed
−
Temperature is below minimum (13.5
°
F
or -10.0
°
C).
−
Probe is disconnected or defective.
Hi is
continually
displayed
−
Temperature is above maximum
(105.0°F or 41°C).
−
Probe is short circuited.
Fan(s) or
heater are
not
operating
−
Verify whether the fan’s LED is on. If
LED is on and fan or heater is not
operating, check wiring, fan and fuse.
Refer to Figure 6 for fuse location. If
fuse is blown, replace with fuse of
same type.
Stage 2 Fan
or Heater is
operating
erratically
−
Verify that the software setting switch
located behind the faceplate is
properly set.
−
Verify the minimum rating (10mA at
230V or 20mA at 230V.
Display is
blank
−
Verify that the line voltage selector
switch is properly set.
−
Verify that the 10 pin flat cable
between the main board and the
faceplate board is connected.
F2 displayed
for relative
humidity
−
Humidity is below minimum (30%).
−
Probe is disconnected or defective.
TROUBLESHOOTING
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Summary of Contents for ECS-2M
Page 8: ...Page 8 ECS 2M www monitrol com ...
Page 19: ...Page 19 Fig 7 Recommended control backup CHAPTER 2 INSTALLATION www monitrol com ...
Page 21: ...Page 21 CHAPTER 3 USER S GUIDE www monitrol com ...
Page 41: ...Page 41 APPENDIX www monitrol com ...
Page 42: ...Page 42 ECS 2M www monitrol com ...
Page 48: ...MAV ECS 2M Ver 1 0 June 5 2001 www monitrol com ...