Troubleshooting; General Guidelines; Precautions When Troubleshooting; Solving Problems Based On Symptoms - Daikin Altherma EHYKOMB33AA Installations- Und Bedienungsanleitung

a
a Base tray
7 Turn the condensate drain to the left and push it downwards
into the condensate trap connection. Make sure in doing this
that the back of the condensate drain pan comes to rest on the
lug of the back of the base tray.
8 Fill the condensate trap with water and fit it to the connection
below the condensate drain pan.
9 Slide the flue pipe, turning it counterclockwise, with the top
around the flue adapter into the top cover.
10 Insert the bottom into the condensate drain pan and tighten the
coupling nut clockwise.
11 Open the gas tap and check the gas connections below the gas
valve and on the mounting bracket for leakage.
12 Check the space heating and the water pipes for leakages.
13 Turn on the main power supply.
14 Turn on the appliance by pushing the
15 Check the front cover, the fan connection on the front cover and
the flue pipe components for leakage.
16 Check the gas/air adjustment.
17 Fit the casing, tighten the 2 screws on the left and right side of
the display.
18 Close the display cover.
19 Check the heating and hot water supply.
EHYKOMB33AA
Daikin Altherma hybrid heat pump – gas boiler module
4P353067-1L – 2022.09
15
If a malfunction occurs,
press
For the symptoms listed below, you can try to solve the problem
yourself. For any other problem, contact your installer. You can find
the contact/helpdesk number via the user interface.
15.1
Before starting the troubleshooting procedure, carry out a thorough
visual inspection of the unit and look for obvious defects such as
loose connections or defective wiring.
15.2
15.3
15.3.1
Gas tap is closed.
Air in the gas tap.
Gas supply pressure too low.
No ignition.
No spark. Ignition unit on gas
valve faulty.
Gas/air adjustment NOT correctly
set.
Fan faulty.
button.
Fan dirty.
Gas valve faulty.

15 Troubleshooting

Troubleshooting
is displayed on the home pages. You can
to display more information about the malfunction.

General guidelines

Precautions when troubleshooting

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.
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.
Solving problems based on
symptoms

Symptom: The burner does NOT ignite

Possible causes
Open the gas tap.
Remove air from the gas pipe.
Contact the gas supply company.
Replace the ignition electrode.
▪ Check the cabling.
▪ Check the spark plug cap.
▪ Replace the ignition unit.
Check the adjustment. See "To
check the CO₂ setting" [ 4 33].
▪ Check the wiring.
▪ Check the fuse. If necessary,
replace the fan.
Clean the fan.
▪ Replace the gas valve.
▪ Re-adjust the gas valve, see
"To
setting" [ 4 33].
Installation and operation manual
Corrective action
check the CO₂
37