613687
23
Zoom out
Zoom in
Previous page
1/26
Next page
23
FAQ AND TROUBLESHOOTING
Troubleshooting Guide
This is a quick guide to help you diagnose and cope with possible problems with
your wireless control system. For further assistance, please contact your Installer.
Symptom Possible Cause Remedy
ST9120C has a blank
LCD display
No power to the
heating system
Check that there is power to the
heating system
Fault in ST9120C Call Installer
ST9120C indicates the
system is ON, but taps
are running with cold
water.
Temperature controls
are switched off or
set too low
Check that the temperature controls in
the system are set to appropriate levels
Boiler or other
system controls
have malfunctioned
Call Installer
ST9120C shows the
message:
‘INTERNAL FAULT’
Fault in ST9120C Call Installer
Every few seconds, the
ST9120C screen shows
the message:
ST9120C is counting
down the number of
days until your next
boiler service is due.
Arrange a boiler service before the
counter reaches zero.
After servicing your boiler, the Service
Engineer / Installer will reset the
ST9120C to remind you when the next
boiler service is due. Each service is
normally a maximum of 1 year apart.
Although the heating
is still operating, the
ST9120C screen keeps
flashing the message:
Your boiler service is
overdue.
Arrange an immediate boiler service.
After servicing your boiler, the Service
Engineer / Installer will reset the
ST9120C to remind you when the next
boiler service is due. Each service is
normally a maximum of 1 year apart.
The ST9120C screen
shows the message:
Your boiler service
is overdue and
the boiler has
been automatically
switched off to
ensure your safety.
Arrange an immediate boiler service.
If set to do so, it may be possible to
obtain limited use of the boiler by
pressing the EXTRA HOUR button.
Each button press will allow operation
of the boiler for 1 hour at a time, and
the screen will display the message
‘On 1h’.
After servicing your boiler, the Service
Engineer / Installer will reset the
ST9120C to remind you when the next
boiler service is due. Each service is
normally a maximum of 1 year apart.
23


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 Honeywell CS92A 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 Honeywell CS92A in the language / languages: English as an attachment in your email.

The manual is 1,3 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.

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