Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting - Daikin Altherma 3 M Installer's Reference Manual

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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
234
15.1
Overview: Troubleshooting .................................................................................................................................................... 234
15.2
Precautions when troubleshooting........................................................................................................................................ 234
15.3
Solving problems based on symptoms................................................................................................................................... 235
15.3.1
Symptom: The unit is NOT heating or cooling as expected .................................................................................. 235
15.3.2
Symptom: Hot water does NOT reach the desired temperature ......................................................................... 235
15.3.3
15.3.4
Symptom: The system is making gurgling noises after commissioning................................................................ 236
15.3.5
Symptom: The pump is blocked............................................................................................................................. 237
15.3.6
Symptom: The pump is making noise (cavitation) ................................................................................................ 237
15.3.7
Symptom: The pressure relief valve opens ........................................................................................................... 238
15.3.8
Symptom: The water pressure relief valve leaks................................................................................................... 238
15.3.9
Symptom: The space is NOT sufficiently heated at low outdoor temperatures .................................................. 239
15.3.10 Symptom: The pressure at the tapping point is temporarily unusually high ....................................................... 240
15.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error) .................................................... 240
15.4
Solving problems based on error codes................................................................................................................................. 240
15.4.1
To display the help text in case of a malfunction.................................................................................................. 241
15.4.2
Error codes of the unit ........................................................................................................................................... 241
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.
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.
DANGER: RISK OF ELECTROCUTION
WARNING
Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this
appliance MUST NOT be supplied through an external switching device, such as a
timer, or connected to a circuit that is regularly turned ON and OFF by the utility.
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 - 2020.06

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