Steffes 612EXT Owner & Installers Manual - Manual (Page 26)

Check for line voltage between L1 and L2
terminal block positions (24).
VOLTAGE
PRESENT
VOLTAGE PRESENT
CHARGE
CONTROL
CIRCUIT
UNUSED
Check for voltage between L1 and T1
terminal block positions (24).
Recheck charge control thermo-
stat (45) setting and/or replace
thermostat.
NO VOLTAGE
PRESENT
NO VOLTAGE PRESENT
Model: S Series Only
Function: Core Charging
Problem: Unit will not charge.
With charge control thermostat (45)
in highest position, check for line
voltage between A1 and A2 terminal
block positions (24).
VOLTAGE
PRESENT
Troubleshoot and repair load
management control or field wiring.
VOLTAGE PRESENT
(Service light on.)
Replace core charging high limit
switch (33).
Check for line voltage between L2 and T2
terminal block positions (24), or observe
service light for illumination (50).
NO VOLTAGE PRESENT
(Service light off.)
Troubleshoot and repair field
wiring.
NO
VOLTAGE
PRESENT
Check unit wiring and heating
elements (54).
Before starting any procedures listed below, check room thermostat and circuit breaker settings.
Note: For cross reference to number coded components, see figure 7.