Hobart HO851G Oven User Manual


 
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Quick View Status Lights
Light
Number
Normal
Operation
Problem Probable Cause Corrective Action
1 Light is on. Light is off. Service door is open. Close service door.
2 Light is on. Light is off. Inadequate hood
air ow.
Call service.
3 Light is on. Light is off. Temperature limit
of oven has been
exceeded.
Cool oven down.
4 Light is on when
calling for heat.
Light is off when
the oven is calling
for heat.
Control PC board is
not sending power to
ignition module.
Call service.
5 Light is on when
calling for heat.
Light is off when
the oven is calling
for heat.
Control PC board is
not sending power to
gas valve.
Call service.
6 Light is off. Light is blinking. Burner ame has
gone out.
Turn off oven then back on.
7 Light is on. Light is blinking. Loading door is open
during purge or Auto
Start.
Close loading door.
8 Light is on during
purge cycle.
Light is off during
purge cycle.
Purge motor not
getting power.
Call for service.
9 Light is on during
purge cycle.
Light is off during
purge cycle.
Emergency stop
panel is not in the
purge position.
Turn oven off and then back on.
10 Light is on during
purge cycle.
Light is blinking. Problem with status
light number 2, 7, 8,
and/or 9.
Check correctiove action to
corresponding numbers.
11 Light is on when
trays are moving.
Light is off when
trays should be
moving.
Drive motor not
getting power.
Switch to manual motor control
(See Emergency Tray Operation on
page 20).
Fig. 3
TEMP DISPLAY ERROR CODES
1. Check for error code HSO. If control temp display reads HSO troubleshoot the following.
A) Stack fan malfunction or pressure switch open.
B) Service access door off or interlock open.
2. Check for error code HPSF. If control temp display reads HPSF troubleshoot the following.
A) Hood or purge pressure switch malfunction.