Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting - Daikin ERLA-DV17 Installer's Reference Manual

15 Troubleshooting

In this chapter

15.1 Overview: Troubleshooting

15.2 Precautions when troubleshooting

ERLA11~16D + EBVH16SU23D
Daikin Altherma 3 R F
4P655196-1A - 2022.05
INFORMATION
This unit is a heating only model. Therefore, all references to cooling in this
document are NOT applicable.
15.1 Overview: Troubleshooting .................................................................................................................................................... 265
15.2 Precautions when troubleshooting........................................................................................................................................ 265
15.3 Solving problems based on symptoms................................................................................................................................... 266
15.3.1 Symptom: The unit is NOT heating or cooling as expected .................................................................................. 266
15.3.2 Symptom: Hot water does NOT reach the desired temperature ......................................................................... 267
15.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating) .................................... 267
15.3.4 Symptom: The system is making gurgling noises after commissioning................................................................ 267
15.3.5 Symptom: The pump is blocked............................................................................................................................. 268
15.3.6 Symptom: The pump is making noise (cavitation) ................................................................................................ 269
15.3.7 Symptom: The pressure relief valve opens ........................................................................................................... 269
15.3.8 Symptom: The water pressure relief valve leaks................................................................................................... 269
15.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures .................................................. 270
15.3.10 Symptom: The pressure at the tapping point is temporarily unusually high ....................................................... 271
15.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error) .................................................... 271
15.4 Solving problems based on error codes................................................................................................................................. 271
15.4.1 To display the help text in case of a malfunction.................................................................................................. 272
15.4.2 Error codes: Overview............................................................................................................................................ 272
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
15 Troubleshooting
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Installer reference guide
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