Models with wired controller
Models with wireless remote controller
N/A
8 flashes of Timer light
Description: Fault with 12V supply of heavy current board in expansion valve
Models with wired controller
Models with wireless remote controller
N/A
9 flashes of Timer light
Description: Fault with polarity of indoor unit (to be determined)
Check if there are noticeable burns or hot
components in the mainboard. Use a
multimeter to check if the 12V supply in
7805 chip of mainboard is in good
condition. Measure the central and the left
pins of the chip. Check if the mainboard is
properly connected.
Replace the mainboard
Check if the null wire and the live wire
of indoor unit are properly connected.
Check if the mainboard and the fan wire
are noticeably damage.
It’s recommended to bring spare parts of
fan. Connect the fan to see if there is any
alarm. If yes, replace the mainboard. If no,
replace the fan.
>a__WcU[S^ <[c >a`V[e[a`Wc
-192-
Summary of Contents for H-MRV AF092FCBHA
Page 121: ... _ VbTZR Zb _ UZdZ_ Vb AU242FHBHA PCB top layer printed diagram 121 ...
Page 122: ... _ VbTZR Zb _ UZdZ_ Vb AU242FHBHA PCB bottom layer printed diagram 122 ...
Page 127: ... _ VbTZR Zb _ UZdZ_ Vb AU482FIBHA high voltage PCB printed diagram 127 ...
Page 131: ... _ VbTZR Zb _ UZdZ_ Vb AU482FIBHA low voltage PCB printed diagram 131 ...
Page 152: ... a__WcU S c a V e a Wc AB092 182FCBHA PCB printed diagram 152 ...
Page 156: ... a__WcU S c a V e a Wc AE FCBKA PCB printed diagram 156 ...
Page 199: ...MEMO Commercial Air Conditioner ...
