557409
46
Zoom out
Zoom in
Previous page
1/60
Next page
10 Troubleshooting
Logano plus GB402 – 6 720 804 428 (2012/09)
46
V 4U 521 Excessive sensor
differential at the
boiler sensor
between
temperature
sensors 1 and 2.
Excessive temperature
differential between
temperature sensors
1 and 2 (deviation
> 5 K/2s).
Check that the "Reset" button
illuminates on the SAFe.
Press "Reset" on the SAFe.
Check that the check valve on the
cylinder primary pump is closed.
Close the check valve if it is still
open.
Check whether the flow and
return have been connected
correctly.
If flow and return have been
swapped, connect flow and
return correctly.
Check whether the plug-in
connection on the boiler sensor
and on the SAFe are
contaminated or damaged.
If required, clean or replace the
plug-in connections.
Check the resistances at the
boiler sensor according to table or
visually inspect the plug at the
temperature sensor.
Replace the boiler sensor if the
sensor values deviate from the
stated values, or if the plug is
faulty.
Check the voltage values on the
boiler sensor according to table.
Replace the SAFe if there are
deviations.
V 4U 522 Boiler sensor
short circuit
between
temperature
sensors 1 and 2.
A temperature sensor
fault was detected in
test mode.
Check the sensor lead.
Check the plug-in connection.
Replace in case of damage.
Clean or replace if
contaminated.
Refit plug it is found to be
loose.
Check sensor values according to
table.
Replace the temperature
sensor in case of deviations.
Check the voltage at the
temperature sensor according to
table.
Replace the SAFe in case of
deviations.
V 4Y 523 Boiler
temperature
sensor lead
break.
Temperature too low at
the boiler temperature
sensor (< -5 °C)
Check the sensor lead. Replace in case of damage.
Check the plug-in connection. Clean or replace if
contaminated.
Replace in case of damage.
Refit plug it is found to be
loose.
Check sensor values according to
table.
Replace the temperature
sensor in case of deviations.
Check the voltage at the
temperature sensor according to
table (SAFe documentation).
Replace the SAFe in case of
deviations.
V 4U 524 Boiler sensor
short circuit.
The boiler sensor
detected an
excessively high
temperature
(> 130 °C).
Check the sensor lead. Replace in case of damage.
Check the plug-in connection. Clean or replace if
contaminated.
Replace in case of damage.
Refit plug it is found to be
loose.
Check sensor values according to
table.
Replace the temperature
sensor in case of deviations.
Check the voltage at the
temperature sensor according to
table (SAFe documentation).
Replace the SAFe in case of
deviations.
V 4A 575 Intelligent high
limit safety cut-
out responds.
The boiler flow
temperature has
reached its maximum
permissible level.
Hi limit safety cut-out has
responded.
Check gas train.
(Does the flame extinguish
after a control shutdown?)
B 5L 542 Incomplete
communication
with the SAFe.
The MC10 generates
this fault if not all
required data is
supplied by the SAFe.
Check the cabling between the
SAFe and the MC10.
Replace the SAFe if the
connections are OK.
Type
1)
Display
code
Fault code Cause Description Test procedure/cause Correction
Tab. 22 Fault displays
1) V = locking; B = blocking
46


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Buderus Logano plus GB402 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Buderus Logano plus GB402 in the language / languages: English as an attachment in your email.

The manual is 5,41 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Buderus Logano plus GB402

Buderus Logano plus GB402 User Manual - English - 20 pages

Buderus Logano plus GB402 User Manual - German - 2 pages

Buderus Logano plus GB402 Installation Guide - Dutch - 60 pages

Buderus Logano plus GB402 User Manual - Dutch - 16 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info