Troubleshooting
Booster Heater
Before performing anytroubleshooting procedures:
1. Relieve Pressure. See
Pressure Relief Procedure, page 46
.
2. Turn main power switch OFF.
3. Allow equipment to cool.
Problems
Trythe recommended solutions in the order given for each problem, to avoid unnecessaryrepairs. Also,
determine that all circuit breakers, switches, and controls are properlyset and wiring is correct before
assuming there is a problem.
Problem
Cause
Solution
Heat turned off.
Turn on heat zones.
Temperature control alarm.
Check ADM for error codes.
Booster heater(s) does not heat.
Signal failure from RTD.
Signal failure from RTD.
DirtyRTD connections.
Examine RTD cables connected
to LPTCMs. Confirm RTDs are
not plugged into opposite heat
zone. Unplug and re-plug RTD
connectors. Unplug and re-plug
RTD connectors. Ensure RTD tip
contacts the heater element.
RTD not contacting heater
element.
Loosen ferrule nut, push in RTD
so tip contacts heater element.
Holding RTD tip against heater
element, tighten ferrule nut 1/4
turn past tight.
Failed heater element.
See
Replace Heater Element, page 68
.
Control of booster heat is
abnormal; high temperature
overshoots (T4DA, T4DB) occurs
intermittently.
Signal failure from RTD.
See (T4DA, T4DB),
Error Codes
and Troubleshooting, page 14
.
36
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Summary of Contents for Reactor E-30i
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