Honeywell BDR91T User Manual

31
Symptom Possible Cause Remedy
ST9420C shows the
message ‘NO SIGNAL’ and
a flashing radiator symbol
DT92E shows a flashing RF
symbol
Your DT92E
batteries are
running low on
power.
Change the DT92E batteries
(see page 21 for how to do this).
RF communication
path between
ST9420C and
DT92E is blocked,
possibly by a metal
object.
Check direct path between both
products and re-position any
objects that may be blocking
the signal.
Relocate the DT92E, if possible.
ST9420C shows the
message ‘NO SIGNAL’ and
a flashing tap symbol
.
CS92A communications
failure indication (Press
CS92A button and red light
comes on. Note – light
will switch off after approx
1 minute to save battery
power).
Your CS92A
batteries are
running low on
power.
Change the CS92A batteries.
This is located next to your hot
water storage tank (see page
25 for description of how to
change the batteries).
RF communication
path between
ST9420C and
CS92A is blocked,
possibly by a metal
object.
Check direct path between both
products and re-position any
objects that may be blocking
the signal.
ST9420C shows the message
‘NO SIGNAL’ and a flashing
flame symbol
Red light on BDR91T (if
installed) is lit continuously.
RF communication
path between
ST9420C and
BDR91T is blocked,
possibly by a metal
object
Check direct path between both
products and re-position any
objects that may be blocking
the signal
ST9420C shows the
message ‘SENSOR FAULT’
and a flashing radiator
symbol
DT92E display shows ‘
’ and a flashing spanner
symbol
Fault with DT92E Call Installer
FAQ AND TROUBLESHOOTING

Honeywell BDR91T Specifications

General

Brand	Honeywell
Model	BDR91T
Category	Thermostat
Language	English