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VI.
VI.
Component Access/Replacement
Component Access/Replacement
Heaters &
Heaters &
NTC’s
NTC’s
–
–
Removal & Installation (1)
Removal & Installation (1)
Removing & Installing Heater & NTC:
Remove two (2) T-20 Torx screws
holding heater assembly to sump.
Disconnect wires from heater, flow
switch, NTC & Hi-Limit after noting
connections.
Pull clips, then carefully pull heater
assembly from sump & pump. Note
heater comes as an assembly (with
housing & gasket).
NOTE: Softer bearing &
non-softer bearing
heater assemblies,
circulation pumps and
sumps cannot
be mixed
and matched. Softer
bearing heaters don’t fit
in older models and
older heaters don’t fit in
softer bearing models.
HINT: If needed, use rinse-aid to lubricate gaskets to make
it easier to assemble heater to sump and pump.
Pull clips
Heater assembly Remove heater screws Remove heater
NOTE: Softer bearing & non-softer bearing heater
assemblies are connected to circulation pumps differently:
• Softer bearing models
(UC/11 & above) have gasket
assembled to heater and have a separate hose clamp
(order # 172272).
• Older models
(UC/06) have a separate gasket and do
not have a hose clamp.
“Softer
bearing” heater
Hose clamp
HINT: Heater assemblies contain NTC’s, Hi-Limit’s & flow switches (& aqua
sensors where applicable). If heaters are replaced, these parts are replaced too.
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