ITW Dynatec DM55 DynaDrum - Electrical Troubleshooting Guide

ITW Dynatec
Chapter 8
Troubleshooting
Page 134 DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19
8.3 Electrical Troubleshooting Guide
Note: This troubleshooting table is only a guideline. The possibility of having more than one problem
occurring at one time can obscure the problem and its resulting symptoms.
Problem Possible Cause Solution
Unit does not heat.
1. System not ON.
2. Temperature zone not ON.
3. Temperature not set.
4. Unit in Standby mode.
5. Circuit breaker tripped.
6. Temperature controller
inoperative.
1. Turn system to ON.
2. Turn zone to ON.
3. Set temperature.
4. Turn Standby mode OFF.
5. Reset circuit breaker.
6. Replace.
Unit too hot. Over
temperature alarm ON.
1. Temperature controller set
too high or is out of
calibration.
2. Temperature setting too close
to over-temperature switch
setting.
3. Short circuit in system.
1. Reset or re-calibrate.
2. Reduce temperature.
3. Find and correct.
Unit will not go into
System Ready status.
1. Inoperative RTD sensor.
2. Unused temperature zone is
turned ON.
3. Open circuit breaker in heater
circuit.
1. Replace.
2. Turned unused zone(s) OFF.
3. Test circuit breaker and
troubleshoot heaters if
necessary.
Unit heats slowly or does
not reach operating
temperature.
1. Low voltage.
2. Heater failure.
1. Correct the low voltage
condition.
2. Test and replace.
Unit remains in Standby
mode.
1. A standby delay time has not
been programmed.
2. Remote control contact is
open.
1. Program a value other than “0”
into the Standby Delay timer.
See also Temperature Screen
Programming (Ch. 6).
2. Close contact.