Revolutionary Cooling Systems PVP2800 - Manual (Page 21)

For example:
EX 1: Fault Code 1000 0000 0480
The first code indicates this is a voltage fault of some kind.
The 4 in code three indicate an AC over voltage.
The 8 in code three indicate the AC frequency was out of bounds.
EX 2: Fault Code 8004 0000 0000
The 8 in the first code indicate a power module fault.
The 4 in the first code indicate a heatsink over temperature fault.
WARNING:
These servicing instructions are for use by qualified personnel
only. To reduce the risk of electric shock, do not perform any servicing other
than that specified in the operating instructions unless you are qualified.
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