Troubleshooting - Danfoss ERC 213 Quick Start Manual

Troubleshooting

NOTES
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© Danfoss | DCS (im) | 2017.08
Power Supply Code
A01
A02
Common Alarm /
E27
Error Codes
E29
Problem
Compressor
does not start
Common
Defrost does not
Problems /
start
Resolution
Wrong
temperature is
displayed
Evaporator icing
Description
High temperature alarm
Low temperature alarm
Defrost sensor error
Air temperature sensor error
Likely Cause
Waiting for compressor delay timer Check compressor minimum off time (CO
Defrost in progress
Controller in pull down mode
Wrong type of sensor selected
Sensor installed into incorrect
terminals
Defrost interval too long
Defrost time too short
Remedy (applicable parameter code
in parenthesis)
Bring down temperature or increase high
limit alarm limit (A13)
Increase temperature or low temperature
alarm limit (A14)
Verify that defrost sensor is wired into
terminals 10 and 11
Verify that correct sensor type is
selected (o06)
Verify that control sensor is wired into
terminals 9 and 10 – 8 is not used
Verify that correct sensor type is selected
Remedy (applicable parameter
number in parenthesis)
Check defrost interval (d03)
Check defrost on demand (temp. initiated
defrost) (d19)
Check pull-down duration (r96)
Verify that correct sensor type is
selected (o06)
Verify that control sensor is wired into
terminals 9 and 10 – 8 is not used
Reduce defrost interval (d03)
Increase max. defrost time (d04)
DKRCE.PD.RL0.A1.02 | 520H12295 | 5
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