
TROUBLESHOOTING
Page 9
SYMPTOM:
The HVAC equipment does not
attempt to turn on.
CAUSE:
The compressor timer lockout may
prevent the air conditioner from
turning on, for a period of time.
REMEDY:
Consult the Owner's Manual in
the Setup section to defeat the
cycles per hour and compressor
timeguard.
SYMPTOM:
The display is blank.
CAUSE:
Lack of proper power.
REMEDY:
Make sure power is turned on to
the furnace and 24vac between
R
&
W
.
If
C
is used, 24vac between
R
&
C
.
P/N 88-446
Rev. 1
C
c
F
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Humidity Control TR7DRH
4Z95
Mode
Cooler
Warmer
70
o
Am
6 00
2
:
Su
7
Mode
Cooler
Warmer
70
o
Am
6 00
2
:
Su
7