Troubleshooting - Delta HE 35 Series Installation And Operating Instructions Manual

Delta HE neutral_d_f_nl_gb_13-10-14_A6:A5 12.11.2014 14:51 Seite 45
1. Pump does not start when power is supplied.
· Check mains fuse
· Check voltage applied to the pump
2. Noise generated in the system.
· Aerate the system
· Check the pump settings
3. Noisy pump
· Aerate pump (see page 8)
· Increase the inlet pressure and check the gas
volume in the expansion vessel.
4. Building does not heat up
· Increase the set value (see page 11)
· Switch off night setback (see page 11)
Please contact a specialist if you cannot eliminate the
fault.

Troubleshooting

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