Unique Klasse DPA-246LG, Service Manual

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5 5)) E Elle ec cttrro on niic c vva allvve e d do oe es s n no ott w wo orrk k..
* There is a time lag in the valve operation.(6.5s)
6 6)) T To op p iin nd do oo orr ffa an n d do oe es s n no ott w wo orrk k..
* 4 steps tap control.
* Turbo, High speed : same RPM
* UV lamp only : low RPM
IC7(MICOM)PIN 7-10
pulse wave type?
MICOM trouble
IC4 PIN 15-16
IC9 PIN 10-11
pulse wave type?
YES
NO
IC4 or IC9(DRIVE IC)
trouble
NO
YES
Check the connector and E/valve
8 8)) U UV V lla am mp p d do oe es s n no ott w wo orrk k..
IC7(MICOM) PIN 28
HIGH ?
MICOM trouble
TR4 PIN 2
LOW ?
YES
NO
TR4 trouble
NO
YES
Check the connector and UV lamp
IC7(MICOM) one of
the pin 12-15 high?
MICOM trouble
IC9 one of the
13-16 low?
One of the relay
RL3-6 work?
YES
NO
IC9(DRIVE IC)
trouble
NO
One of the RL3-6
trouble
NO
YES YES
Top indoor fan trouble
7 7)) B Bo otttto om m iin nd do oo orr ffa an n d do oe es s n no ott w wo orrk k..
IC7(MICOM) PIN 11
PIN HIGH?
MICOM trouble
IC6 PIN 12 PIN
LOW?
RELAY RL2
work?
YES
NO
IC9(DRIVE IC)
trouble
NO
RL2 trouble
NO
YES YES
Top indoor fan trouble