Friedrich FRESHAIRE PVH09K3FA, Руководство по обслуживанию и запасным частям

Страница: 92 / 109

92 PB
TROUBLESHOOTING
Check Electric Heater Control
Check Heater Assembly.
Refer to Figures 714-716 on previous page.
Does Heater Assembly check good?
Check for 12 vdc at heater relays.
Is 12 VDC Present?
Check CN2 and CN21 on Main PCB for 12 vdc.
Is 12 VDC Present?
Check for consistent 12-14 vdc at power relay
connector on main PCB. Monitor voltage for a few
minutes to ensure voltage does not drop o ff .
Is 12 VDC Present?
Replace Heater Assembly.
Check for 230/265v across relay 1 black and relay 2
blue wire on com terminals.
Is 230/265 present?
Check line voltage connec � ons at
line block. Repair as required.
Replace Relays as required.
Replace or repair cables.
Replace Main PCB.
Check for con � nuity end to end on power relays
cable.
Does Cable check good?
Replace Power relays cable.
Replace Power PCB.
Figure 717