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44 | Troubleshooting
E2
IS FLASHING
CH NTC is defective
Order
Control Step
1.
Check if CH flow temperature sensor
(NTC) is damaged or not?
Turn of the appliance
Pull cables out
Measure the electrical resistance of
the NTC sensor.
Are the measured values OK?
(resistance table)
2.
Check if the cables are damaged or not?
Turn of the appliance
·If NTC changed:
-disassemble the NTC cable from
NTC.
-measure the sensor resistance.
-assemble the NTC to NTC cable
again.
Pull out the 20 poled RAS 5
connector from the electronic card.
Measure the electrical resistance of
Are the measured resistance values at
at NTC and sock connection same?
3.
Electronic card is out of order.
44
Measure
Yes:
Check the connection terminal on NTC
If E2 still flashing
No:
Change the NTC.
Fasten the connection cable.
Switch on the appliance.
If E2 still flashing
Yes:
Chance the cable harness
Turn on the appliance.
Is E2 flashing
No:
3.
Switch off the appliance.
Cut mains supply.
Change the electronic card.
Connect to mains supply.
Switch on the appliance.
2.
2.
3.
6 720 660 238 (2008/07)
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Do you have a question about the ZWE 24-5 MFA and is the answer not in the manual?
Questions and answers
מה צריך לעשות כשהמכשיר מראה c4
When the Junkers ZWE 24-5 MFA shows error code C4, follow these steps:
1. Check APS hoses: Ensure they are not damaged, blocked, or have condensation.
- If damaged or blocked, turn off the appliance, clean and dry the hoses, then switch it back on.
- If C4 is still flashing, proceed to step 2.
2. Check 20-poled connection cable: Inspect for damage.
- If damaged, change the cable harness and switch on the appliance.
- If C4 is still flashing, proceed to step 3.
3. Check APS functionality: Verify if it is working.
- If APS is not working, further investigation or replacement may be needed.
Following these steps should help diagnose and resolve the C4 error.
This answer is automatically generated