Symptom: The Burner Ignites Noisily; Symptom: The Burner Resonates - Daikin Altherma R Hybrid Installer's Reference Manual

13 | Troubleshooting

13.3.13 Symptom: The burner ignites noisily

13.3.14 Symptom: The burner resonates

Installer reference guide
180
Possible causes
No ignition.
No spark. Ignition unit on gas valve
faulty.
Gas/air adjustment NOT correctly set.
Fan faulty.
Fan dirty.
Gas valve faulty.
Possible causes
Gas supply pressure too high.
Incorrect ignition gap.
Gas/air adjustment NOT correctly set.
Weak spark.
a Spark gap (±4.5 mm)
Possible causes
Gas supply pressure too low.
Recirculation of combustion gasses.
Gas/air adjustment NOT correctly set.
Corrective action
Replace the ignition electrode.
▪ Check the cabling.
▪ Check the spark plug cap.
▪ Replace the ignition unit.
Check the adjustment. See
4
the CO₂ setting" [ 147].
▪ Check the wiring.
▪ Check the fuse. If necessary, replace
the fan.
Clean the fan.
▪ Replace the gas valve.
▪ Re-adjust the gas valve, see
4
the CO₂ setting" [ 147].
Corrective action
The house pressure switch may be
faulty. Contact the gas company.
▪ Replace the ignition pin.
▪ Check the ignition electrode gap.
Check the setting. See
4
CO₂ setting" [ 147].
Check the ignition gap.
Replace the ignition electrode.
Replace the ignition unit on the gas
valve.
a
Corrective action
The house pressure switch may be
faulty. Contact the gas company.
Check the flue gas and the air supply.
Check the adjustment. See
4
the CO₂ setting" [ 147].
CHYHBH05+08AF + EHYKOMB33A
"To check
"To check
"To check the
"To check
Daikin Altherma R Hybrid
4P471761-1E – 2020.10