Daikin ESIE13-02 Service Manual page 91

ESIE13-02
2.4.4 No heating (CH)
2.4.5 Symptom: No space heating
Possible causes
Heat pump error.
Communication problem with the heat pump.
Incorrect heat pump settings.
The service display displays "_", the gas boiler is
switched off.
No current (24 V).
The burner does NOT fire on space heating:
sensor S1 or S2 faulty.
Burner does NOT ignite.
Possible causes:
Room thermostat / weather-dependent
adjustment not closed or faulty.
No
No current (24 V).
No
Pump not running.
No
Burner not firing on CH: sensor S1 or
S2 faulty.
No
Burner does not ignite.
Error Codes: Gas Condensing Boiler
Solution:
Check the wiring. Replace the thermo-
stat. Replace the weather-dependant
Yes
adjustment.
Check the wiring against the diagram.
Check the connector X4. Replace the
Yes
faulty manager.
Check the power supply. Check con-
nector X2. Replace faulty pump.
Yes
Replace faulty manager.
Replace sensor S1 or S2. See fault
Yes
code, temperature display: 1 or 2.
See burner does not ignite.
Yes
Corrective action
Check the user interface.
Make sure the communication cable is properly
installed.
Check the settings in the heat pump manual.
Switch on the gas boiler with
Check the wiring.

Check the connector X4.

Replace the faulty pump.

Replace sensor S1 or S2. See "Error codes of
the gas boiler" on page 87.
See "2.4.1-Burner does not ignite" on page 89.
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Part 4 – Troubleshooting
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