Friedrich FPHW091 Service Manual page 67

Error Code 36
See Figure 716
See Figure 717
67
TROUBLESHOOTING
E36 Error
Does communica�on wiring
meet specifica�ons?
14 gauge stranded wiring rated
for 600v
Yes
Are there any junc�on boxes or
splices in the wiring except for
code required disconnects?
No
Is Wiring connected to the
proper terminals?
L, N, S1 are not always
configured from le� to right.
Yes
Check Line Voltage at indoor
and Outdoor Units for 115 or
230 VAC as required.
Is voltage correct?
Yes Yes
Is condensate pump being
powered from terminal block?
It must have it's own power
source.
No
Measure voltage between S1
and N. Is the voltage fluctua�ng
between 0 and 24 vdc?
See Figure 716
Yes
Check the indoor and outdoor
fan motors. See Component
Tes�ng sec�on. Do motors
check good?
Yes
End
Replace wiring
NO
as required.
Replace wiring
Yes
as required.
Correct wiring
No
connec�ons.
Trace back
source of
No
problem and
correct.
Connect
condensate
Yes pump to its
own power
source.
Replace indoor
or outdoor
No No
control boards
as required.
No Replace motor
as required