Hotstart CLM, Installation & Operation Manual

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16
installation
&
operation manual
|
cmm
/
clm heating system
4.5 TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSES SOLUTION
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. Bleed and restart system.
Pump motor turning
backwards
Reverse any two power leads (in three-phase system).
Restart system. See SECTION 3.3.1 . For single-phase
systems, contact Hotstart.
Control TCR failure: closed Check and replace if necessary. See SECTION 4.2.10 .
Motor failure Check and replace if necessary. Restart system.
Motor contactor failure Disconnect system power and check contactor. Replace if
needed. See SECTION 4.2.5 .
Motor protection switch
tripped
Check and reset switch. If problem occurs again, check
motor. Restart system. See
SECTION 4.1
.
RTD failure Check TCR and RTD. See
SECTION 4.2.10
.
RTD cable failure Check TCR and RTD. See SECTION 4.2.10 .
Fluid temperature
too low
Motor failure Check motor. Replace if necessary.
Heating system has been
turned off and fluid is cold
Allow time for the heating system to heat fluid.
Heating element failed Check elements for continuity. Replace element if
necessary.
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
SECTION 4.2.10
.
Control TCR set point too low Adjust set point for control TCR. See
SECTION 3.2.3.
RTD failure Check TCR and RTD. See SECTION 4.2.10
RTD cable failure Check TCR and RTD. See SECTION 4.2.10 .