Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting - Daikin Altherma 3 R MT F Series Installer's Reference Manual

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Troubleshooting

15 Troubleshooting
In this chapter

15.1 Overview: Troubleshooting

15.2 Precautions when troubleshooting

Installer reference guide
258
INFORMATION
This unit is a heating only model. Therefore, all references to cooling in this
document are NOT applicable.
15.1 Overview: Troubleshooting .................................................................................................................................................... 258
15.2 Precautions when troubleshooting........................................................................................................................................ 258
15.3 Solving problems based on symptoms................................................................................................................................... 259
15.3.1 Symptom: The unit is NOT heating or cooling as expected .................................................................................. 259
15.3.2 Symptom: Hot water does NOT reach the desired temperature ......................................................................... 260
15.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating) .................................... 260
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) ................................................................................................ 262
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 .................................................. 263
15.3.10 Symptom: The pressure at the tapping point is temporarily unusually high ....................................................... 264
15.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error) .................................................... 264
15.4 Solving problems based on error codes................................................................................................................................. 264
15.4.1 To display the help text in case of a malfunction.................................................................................................. 265
15.4.2 Error codes: Overview............................................................................................................................................ 265
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
ERRA08~12E + ELVZ12S18+23E
Daikin Altherma 3 R MT F
4P708478-1 - 2023.05