613692
21
Zoom out
Zoom in
Previous page
1/34
Next page
21
DT92E OPERATING INDICATORS
Low Battery Indicator / Battery Replacement
The battery symbol will start
to flash if the battery power is
running low. From this point,
there will be a minimum of 4
weeks before the product will
cease to function.
Batteries are accessed by
unclipping the front cover at the
bottom. Note battery polarity.
Reverse process to refit front
cover.
Use 2xLR6 (AA) alkaline
batteries only.
Immediately on power up, DT92E will try to communicate and synchronise with
ST9420C. This process may take up to 4 minutes, and will be indicated by the word
‘Sync’ on the DT92E display.
RF Communications Indicator
A brief flash of the RF symbol indicates the DT92E
has been communicating with the other system
controls.
Lockout
Your DT92E works in conjunction with the ST9420C
time control. If the timer is set to OFF or CONT it may
not be possible to override it from the thermostat
and this is indicated by the lockout symbol
. To
switch the heating on you must go to the timer and
set the Mode to AUTO, ONCE, or CONT.
2 x LR6 AA Alkaline
1
2
21


Need help? Post your question in this forum.

Forumrules
1

Forum

honeywell-st9420c

Reset search

  • Switched heating to off but it remains on. Taken out batteries from thermostat and heating still on Submitted on 31-7-2021 at 20:16

    Reply Report abuse


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 ST9420C 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 ST9420C in the language / languages: English as an attachment in your email.

The manual is 1,21 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