Duke FBB-EO-208 - Page 33

33
Service Manual for Flexible Batch Broiler Units
Symptom Cause Remedy
Display shows “hT:Er” –
(Possible error during “PrE”)
Element
Identify correct Heater location and test
continuity.
Fuse Test continuity of appropriate Fuse.
Solid State Relay
Ensure Solid State Relay switches ON / OFF
at appropriate intervals. Test for closed or
open output condition.
Wiring Check for broken or improper wire connection.
Heat Loss Check for missing or damaged panels.
Displays ashes “tESt” &
“Prod” – (Test Product)
Refer to “Ht:x”
This error may occur at the end of a cook
cycle and should be followed by a “Ht:x” error.
Display shows “Hi” –
(High Temperature Error)
Solid State Relay
Ensure Solid State Relay switches ON / OFF
at appropriate intervals. Test for closed or
open output condition.
Control
Test Solid State Relay inputs for appropriate
signal from control.
Wiring Check for broken or improper wire connection.
Display shows “Lo” –
(Low Temperature Error)
Refer to “Ht:x” “Lo” may be followed by a “Ht:x” error.
Refer to “Ht:x” “Lo” may be followed by a “PnL” & “oFF” error.
Refer to “hT:Er” “Lo” may be followed by a “hT:Er” error.
Heat Loss Check for missing or damaged panels.
Display shows “Sr:Er” –
(Failure of “ALL OFF”
Diagnostic Test)
Element
Identify correct Heater location and test
continuity.
Fuse Test continuity of appropriate Fuse.
Solid State Relay
Ensure Solid State Relay switches ON / OFF
at appropriate intervals. Test for closed or
open output condition.
Wiring Check for broken or improper wire connection.
Diagnostic Board Ensure board powers on.
Control
Test Solid State Relay inputs for appropriate
signal from control.
Current Sensor Measure continuity on Current Sensors.
Display shows “dB:Er”
Wiring
Check harness connection between
Diagnostic Board and Control Board.
Diagnostic Board Ensure board powers on.
Control Ensure board powers on.
Current Sensor Measure continuity on Current Sensors.