Hotstart OGM, Installation & Operation Manual

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17
installation
&
operation manual
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oxm
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ogm heating system
5.5 TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSES SOLUTION
Heating system fault Pump not primed properly Bleed all trapped air from lines. Restart
system.
Isolation valves may be closed Open valves. Restart system.
Hose kinked or crushed Remove obstruction. Restart system.
Leak in suction line Repair leak. Restart system.
Pump motor turning backwards Reverse any two leads on power (in
three-phase system). Restart system. See
SECOIO 4 .
Control TCR failure: closed Check and replace if necessary. See
SECOIO 5.2.10 .
Motor failure Check and replace if necessary. Restart
system.
Motor contactor failure Check contacts and replace if needed.
Restart system.
Motor protection switch tripped Check and reset switch. If problem occurs
again, check motor. Restart system.
RTD failure Check TCR and RTD. See
SECOIO
5.2.10
.
RTD cable failure Check TCR and RTD. See SECOIO
5.2.10 .
Oil temperature
too low
Motor failure Check motor. Replace if necessary.
Heating element failed Check elements for continuity. Replace
element if necessary.
Element breaker tripped Check for element short to ground. If no
short, reset breaker.
Element contactor failed Check contacts and coil. Replace if
necessary.
Motor contactor failed Check contacts and coil. Replace if
necessary.
Control TCR failure: open Check and replace if necessary. See
SECOIO 5.2.10 .
Control TCR set point too low Adjust set point for control TCR. See
SECOIO 3.8.
RTD failure Check TCR and RTD. See SECOIO
5.2.10
RTD cable failure Check TCR and RTD. See SECOIO
5.2.10 .