SP8016-1005
ACCU-STEAM SERVICE MANUAL
PAGE 5
SyMPTOM
POSSIBLE CAUSE
EVALUATION
Unit is over / under temp
Thermostat
This is a type K thermostat. Check that 24 volts AC is
present at terminals 4 & 5. For units with serial numbers
7551 and up, the thermostat will be a RTD type.
Thermocouple
This is a type K thermocouple (red and yellow leads). Refer
to the thermocouple chart for proper measurements. For
units with serial numbers 7551 and up, this will be a RTD
probe. (two red leads) Must use the correct probe with the
type of thermostat installed.
Uneven temperatures
Unit installation
Make sure that the unit is level. Perform the 9 point
temperature test and correspond with the temperature
setting. (three reading across the back, three across the
middle and three across the front. All readings should
be within 3 degrees. Check for hot spots or leaks. Notify
Accutemp Service with any fluctuating readings.
Unit is blowing flames out of
the back
Flue
Clean the flue of any obstructions or build up.
Burners
Check for damaged ceramics. Replace as necessary
Gas pressure.
Maximum supply gas pressure should not exceed 0.5 psig.
(14” WC) External regulators should not be used unless
this reading is exceeded.
REMOVAL AND INSTALLATION
TRANSFORMER
Unplug the unit
1.
Remove the three screws from the front door panel and drop the panel down.
2.
Disconnect the wires from the primary and secondary side of the thermostat. Note their
3.
locations.
Remove the nylock nuts and pull the transformer out.
4.
Reassemble in reverse order.
5.
TRANSFORMER
AT0E-1809-1
TROUBLE ShOOTING MATRIX
