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Graco HFR - Page 87

Graco HFR
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Appendix D - ADM Error Codes
3A2797R 87
WKH1
High Motor
Speed
The motor has reached a
speed that should not be
reached in normal operation
and was shutdown to prevent
possible damage
Alarm
No power to directional
valve
Make sure the directional valve has power
Bad directional valve
connection
Make sure the cord to the directional valve is
connected to the correct port and the cord is not
damaged
Directional valve failure The directional valve will need to be replaced
Hydraulic power pack
failure
The hydraulic power pack will need repair
Defective encoder Replace encoder
Motor no longer coupled
to hydraulic pump
Reset coupler per specifications and retighten set
screws
Supply tube from
hydraulic pump to
manifold is loose or
broken
Retighten or replace supply tube
Broken motor shaft Replace motor
WM06
Red Tank
Con. Fault
High current to relay 1 Alarm Broken contactor Replace contactor
WM05
Blue Tank
Con. Fault
WM03
Red Inline
Con. Fault
WM01
Blue Inline
Con. Fault
WM02
Red Hose
Con. Fault
WM04
Blue Hose
Con. Fault
WM07
Red Chiller
Con. Fault
WM08
Blue Chiller
Con. Fault
WMA6
Red Blanket
High Temp.
Tank blanket is above the
defined high alarm limit
Alarm
Defective RTD Replace RTD
WMB5
Blue Blanket
High Temp.
Defective High Power
Temperature Control
Module
Replace High Power Temperature Control Module
Loose connections Tighten connections
WMC6
Red Tank
Con. Fault
Unexpected current to relay 1 Alarm Shorted module
If temperature is being affected by a zone that has
been disabled, replace heat module
WMC5
Blue Tank
Con. Fault
WMC3
Red Inline
Con. Fault
WMC1
Blue Inline
Con. Fault
WMC2
Red Hose
Con. Fault
WMC4
Blue Hose
Con. Fault
WMC7
Red Chiller
Con. Fault
WMC8
Blue Chiller
Con. Fault
WMH1
Motor
Controller
Fault
A general fault has occurred
within the MCM
Deviation Internal hardware failure
Cycle power, if the error persists the MCM will need to
be replaced
Error
Code Error Name Error Description
Error
Type Cause Solution

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