Friedrich FPHMR36A3A Service Manual

108 PB
TROUBLESHOOTING
E64 Error
Does communication wiring
meet specifications?
14 gauge stranded wiring rated
for 600v
Replace wiring
as required.
No
Are there any junction boxes or
splices in the wiring except for
code required disconnects?
Yes
Replace wiring
as required.
Yes
Is Wiring connected to the
proper terminals?
L, N, S1 are not always
configured from left to right.
No
Correct wiring
connections.
No
Check Line Voltage at indoor
and Outdoor Units for 230 VAC
as required.
Is voltage correct?
Trace back
source of
problem and
correct.
Yes
No
Yes
Is an external condensate pump
being powered from terminal
block?
It must have it’s own power
source.
Connect
condensate
pump to its
own power
source.
Yes
Measure voltage between S1
and N. Is the voltage fluctuating
between 0 and 24 vdc?
No
Replace indoor
or outdoor
control boards
as required.
No
E64 Error
Check the indoor and outdoor
fan motors. See Component
Testing section. Do motors
check good?
Yes
Replace motor
as required
End

Friedrich FPHMR36A3A Specifications

General

Brand	Friedrich
Model	FPHMR36A3A
Category	Air Conditioner
Language	English