Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting - Daikin ERGA04EAV37 Installer's Reference Manual

15 Troubleshooting

In this chapter

15.1 Overview: Troubleshooting

15.2 Precautions when troubleshooting

ERGA04~08EAV3+V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1A - 2022.07
Contact
For the symptoms listed below, you can try to solve the problem yourself. For any
other problem, contact your installer. You can find the contact/helpdesk number
via the user interface.
1 Go to [8.3]: Information > Dealer information.
15.1 Overview: Troubleshooting .................................................................................................................................................... 257
15.2 Precautions when troubleshooting........................................................................................................................................ 257
15.3 Solving problems based on symptoms................................................................................................................................... 258
15.3.1 Symptom: The unit is NOT heating or cooling as expected .................................................................................. 258
15.3.2 Symptom: Hot water does NOT reach the desired temperature ......................................................................... 259
15.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating) .................................... 259
15.3.4 Symptom: The system is making gurgling noises after commissioning................................................................ 260
15.3.5 Symptom: The pump is blocked............................................................................................................................. 261
15.3.6 Symptom: The pump is making noise (cavitation) ................................................................................................ 261
15.3.7 Symptom: The pressure relief valve opens ........................................................................................................... 262
15.3.8 Symptom: The water pressure relief valve leaks................................................................................................... 262
15.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures .................................................. 262
15.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error) .................................................... 263
15.4 Solving problems based on error codes................................................................................................................................. 264
15.4.1 To display the help text in case of a malfunction.................................................................................................. 264
15.4.2 Error codes: Overview............................................................................................................................................ 264
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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