Haier GE APPLIANCES NF80D045S3A Service Manual page 16

P49
5
4
3
2
1
N
G
L
C
P48
Test 1
Turn on power to unit. Check for 120 volts across terminals
"L" and "N" on input plug P48. If voltage is present continue
to test 2. If voltage is not present, problem may be
upstream of plug P48. Proceed to test 3.
P49
5
4
3
2
1
N
G
L
C
P48
Test 2
Switch thermostat to CONTINUOUS FAN MODE. Check for
24 volts across terminal "C" on input plug P48and speed tap
used for continuous fan. (1, 2, 3, 4 or 5) on input plug P49. If
24 volts is not present problem may be up stream of plug P49.
Proceed to test 4.
Multi−Meter
(set to VAC)
12 12
0 0
Test 3 (if necessary)
Check for 120 volts across terminals "CIRC" and "Neutrals"
on the integrated control. If voltage is present, problem is
with the harness. If voltage is not present problem may be
may be with the integrated control.
Multi−Meter
(set to VAC)
24
Figure 13.
Page 16
Test 4 (if necessary)
Check for 24 volts across terminals "24 COM" and "FAN"
terminals on the integrated control. If voltage is present,
problem is with the harness. If voltage is not present,
problem may be may be with the integrated control.
Multi−Meter
(set to VAC)
12 12
0 0
Multi−Meter
(set to VAC)
24
31-5000736 Rev. 0