Daikin FTKS50BVMB, Service Manual

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Troubleshooting for RA Indoor Unit SiEN18-622
324 Troubleshooting
Troubleshooting
Check No.06
Refer to P.331
NO
NO
NO
NO
Check No. 06
Indoor
u nit he a t exch a nger
thermi s tor check
Cle a n the a ir filter.
(R4695)
Caution
Check the a ir p assa ge.
YE S
YE S
YE S
YE S
Be su re to t u rn off power s witch b efore connect or di s connect connector, or p a rt s
d a m a ge m a y b e occ u rred.
I s there a ny
s hort-circ u it?
Check the int a ke a ir filter.
I s it very dirty?
Check the d us t a cc u m u l a tion on
the indoor u nit he a t exch a nger.
I s it very dirty?
Doe s it conform to the
thermi s tor ch a r a cteri s tic
ch a rt?
Provide su fficient a ir p assa ge.
Cle a n the he a t exch a nger.
Repl a ce the indoor u nit PCB.
Repl a ce the thermi s tor
(repl a ce the indoor u nit PCB).