Trane A5HL5060A1000A - Page 46

46
A5HL5-SF-1A-EN
F7 - Module Temperature Protection
IPM overtemperature protection, when IPM temperature more than 203°F, it will show F7.
Replace ODU PCB
IPM temperature
circuit abnormal?
Replace capillary
Display F7
End
IPM well contact
No
to heat sink?
Any dust or gap btw
IPM & heat sink?
Yes
Yes
ODU cooling system
abnormal? Compressor
with high running current?
(24/36K 13-16A,
48/60K
16-20A)
No
Check the screws
fully fasten?
No
Yes
Fasten the screw
Yes
F7 disappear?
No
Low pressure normal?
(116-174psi)
No
Yes
Yes
No
No
Is the 2way and 3way
valve fully opened?
Yes
Yes
Capillary blocked?
No
No
No
F7 disappear?
Yes
Yes
Condenser /
evaporator dirty?
End
Clean condenser /
evaporator
Open the valve
Clean or adjust the gap
btw IPM and heat sink