15
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Troubleshooting
15 Troubleshooting
In this chapter
15.1 Overview: Troubleshooting
15.2 Precautions when troubleshooting
Installer reference guide
198
15.1
Overview: Troubleshooting .................................................................................................................................................... 198
15.2
Precautions when troubleshooting........................................................................................................................................ 198
15.3
15.3.1
15.3.2
15.3.3
15.3.4
15.3.5
Symptom: The pump is blocked............................................................................................................................. 201
15.3.6
15.3.7
15.3.8
15.3.9
15.4
15.4.1
15.4.2
Error codes of the unit ........................................................................................................................................... 204
This chapter describes what you have to do in case of problems.
It contains information about:
▪
Solving problems based on symptoms
▪
Solving problems based on error codes
Before troubleshooting
Carry out a thorough visual inspection of the unit and look for obvious defects such
as loose connections or defective wiring.
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
WARNING
▪
When carrying out an inspection on the switch box of the unit, ALWAYS make
sure that the unit is disconnected from the mains. Turn off the respective circuit
breaker.
▪
When a safety device was activated, stop the unit and find out why the safety
device was activated before resetting it. NEVER shunt safety devices or change
their values to a value other than the factory default setting. If you are unable to
find the cause of the problem, call your dealer.
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B - 2022.09