86
VIII.
VIII.
Troubleshooting
Troubleshooting
Heater
Heater
–
–
Replacing Older UC/06 NLA Heaters
Replacing Older UC/06 NLA Heaters
Some heater assemblies for old index UC/06 models aren’t
available -- # 264463 (for SHU 3000/4000 models) & #
269255 (for SHU 3030/3130 models). Similar heater
assemblies for other index UC/06 models can be used when
thermostats are installed, flow switches are replaced and
aqua sensors are removed – use # 263869 (used on SHU
53/68 models) or # 264462 (used on SHU 33/43/99 models).
Remove
aqua
sensor
Push latches to remove NTC,
then replace with appropriate
thermostat (& o-ring) for the
particular model.
# 069796
# 175711
Must replace 2-
terminal flow switch
# 175711 with 3-
terminal # 069796.
HINT: Do not use softer
bearing heater assemblies
(UC/11 & later) such as #
480317 on older UC/06
models since the sump,
circulation pump, base and
heater clamps/gaskets
have to be replaced as
well for the heaters to fit.
HINT: Remove aqua sensors from heater
assemblies before installation as aqua sensors aren’t
used and have no wires to be connected to.
NOTE: Individual heating elements aren’t available.
Use 263869 or 264462 heater assemblies only.
165384 thermostat for
SHU 3030/3130 models
168575 thermostat for
SHU 3000/4000 models
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