Robertshaw 8425 Thermostat User Manual


 
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8. Wait five seconds or press and the display will switch to the fil-
ter monitor setting.
9. CHECK FILTER and the length of hours for
the filter monitor will be displayed.
10. Use the or to adjust the filter timer
from 0 (OFF) to 9900 hours. NOTE: The
filter timer is based on equipment run
time. Select the length of time based on the recommended service
interval for your filter.
11. Press the to return to normal operation.
Check Filter Reset
Once the filter timer has expired,
CHECK FILTER will turn on and stay
on. To clear the message and reset
the timer:
1. Press the and buttons and
hold for 3 seconds. CLr will appear
in the time display.
2. Press any key to clear the message.
The display will transition to the
temperature scale display as
described in the previous section.
3. No further input is needed. Within a few seconds, the display will
return to the normal operating mode.
Backlit Display
This thermostat is equipped with a backlight to make night time temper-
ature adjustments quick and easy. Press the button to activate the
backlight. The backlight will turn off after about 10 seconds of inactivity.
Reset
To reset the thermostat press the RESET button located above the upper
left corner of the display.
R
L
C
Y2
W2/E
GOBY1W1
ELEC GAS
NON_HP HP
°
F
RESET switch
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