High Limits - Henny Penny SCR-8 Service Manual

Henny Penny
7-20. HIGH LIMIT
7-16
The high limit is a safety device which senses an overheating situa
tion inside the rotisserie, (around 500ºF), which shuts the heat off in
the unit. Once the temperature inside the unit goes down, then the
high limit automatically resets and the unit can then be heated. All
SCRs have two high limits. The SCR-6 and SCR-8 both have a
450ºF high limit and a 500ºF high limit. The SCR-3 has a 285ºF
high limit and a 450ºF high limit.
European, CE units have 450ºF, manual reset high
limits. These have a reset button on them and must be
manually pressed. Follow the steps in the procedures in
this section to access this high limit.
1. Remove electrical power supplied to unit.
Remove electrical power supplied to the unit by
unplugging the unit, or by turning off the wall circuit
breaker, or electrical shock could result.
2. Remove the control side, side panel.
3. Pull the wires from the 500ºF high limit (285ºF on
SCR-3s) and check for continuity between the terminals.
When the cabinet temperature is below 300ºF, the high limit
should show continuity. If it does show continuity, continue
on with this section. If it doesn't, replace this high limit with
a new one and unit should then be ready for use.
4. If the 500ºF high limit shows continuity, the 450ºF high
limit could be bad. To access this high limit, remove the
insulation washer from the stud and remove the insulation.
For CE, European units, the reset button can be accessed at
this time. Use a pen, pencil, or screwdriver to press the
button through the hole in the box. If unit now heats, replace
the insulation and side panel and unit is ready for use. If unit
does not heat, proceed with the following steps.
NOTE
NOTE
SCR-6/8
698