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15
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Troubleshooting
15 Troubleshooting
In this chapter
15.1 Overview: Troubleshooting
15.2 Precautions when troubleshooting
Installer reference guide
274
15.1
Overview: Troubleshooting .................................................................................................................................................... 274
15.2
Precautions when troubleshooting........................................................................................................................................ 274
15.3
Solving problems based on symptoms................................................................................................................................... 275
15.3.1
Symptom: The unit is NOT heating or cooling as expected .................................................................................. 275
15.3.2
Symptom: Hot water does NOT reach the desired temperature ......................................................................... 275
15.3.3
Symptom: The compressor does NOT start (space heating or domestic water heating) .................................... 276
15.3.4
Symptom: The system is making gurgling noises after commissioning................................................................ 276
15.3.5
Symptom: The pump is blocked............................................................................................................................. 277
15.3.6
Symptom: The pump is making noise (cavitation) ................................................................................................ 278
15.3.7
Symptom: The pressure relief valve opens ........................................................................................................... 278
15.3.8
Symptom: The water pressure relief valve leaks................................................................................................... 278
15.3.9
Symptom: The space is NOT sufficiently heated at low outdoor temperatures .................................................. 279
15.3.10 Symptom: The pressure at the tapping point is temporarily unusually high ....................................................... 280
15.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error) .................................................... 280
15.4
Solving problems based on error codes................................................................................................................................. 280
15.4.1
To display the help text in case of a malfunction.................................................................................................. 281
15.4.2
Error codes: Overview............................................................................................................................................ 281
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.
ERRA08~12E + ELVH/X12S18+23E
Daikin Altherma 3 R MT F
4P708474-1 - 2023.05
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