E466 - Samsung RC090MHXEA Service Manual

E466

3 phase unit with the phases reversed or single phase outdoor pcb has
been fitted in a 3 phase outdoor units
Or.
If input voltage to outdoor unit is less than 198V ac the fault occurs
Or reactor is faulty or unplugged. The reactor has 2 black wires and 2 white wires. You must
check they are all plugged into the inverter pcb. If they are un-plug the reactor and test the
resistance of the reactor it should be 0 ohms across the two black wires and 0 ohms across
the 2 white wires. Reactors NEVER go wrong.
We had one-unit size RD160 with this fault which was caused by the inverter pcb being faulty,
new pcb and it works
Just had an rc090mhxea unit with the same problem. Looks like the inverter pcb does cause
this problem.
See e464.
www.freedomhp.co.uk ©G Hendra Nov 18 37