3.1.3
Start-Up Sequence ................................................................................................................. 19
3.2
Digital Control Board ................................................................................................................. 20
3.3
3.3.1
Equalize Timer Modes ............................................................................................................ 21
3.4
Adjusting Parameters ................................................................................................................. 22
3.4.1
Settings Menu ....................................................................................................................... 22
3.5
Test Menu ................................................................................................................................ 26
3.5.1
Test LEDs ............................................................................................................................. 26
3.5.2
Test Relays ........................................................................................................................... 26
4
Service ............................................................................................................................................. 28
4.1
4.2
Troubleshooting Procedure ......................................................................................................... 29
4.3
Symptoms & Causes .................................................................................................................. 30
4.3.1
AC Breaker Trips .................................................................................................................... 30
4.3.2
Open DC Fuse or Breaker ....................................................................................................... 30
4.3.3
4.3.4
4.3.5
4.3.6
Troubleshooting the TRIAC ..................................................................................................... 31
4.3.7
4.3.8
Checking Capacitors ............................................................................................................... 31
Appendix C: TPSD Heat Losses ................................................................................................................. 35
iv