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Low Profile – 1600 Series Advantage Digital Service Manual – Domestic

 

 

Oven control 

Check for 24 VAC supply to control. If no voltage is present, 

trace wiring back to control transformer. If 24 VAC is present, 

check for a read-out on the control display. If there is 24 VAC 

supplied, but there is no read-out on the control display, replace 

the oven control. 

If there is a read-out on the control, set the control to maximum 

temperature (see installation operations manual for temperature 

adjustment). With the control set at maximum temperature, 

check for 120 VAC at temperature regulation valve. If there is 

voltage at the temperature regulation valve, proceed to 

“temperature regulation valve” for next check. If there is no 

voltage at the temperature regulation valve, trace wiring back to 

the oven control. If there is no voltage output at the oven control, 

Check the read-out on the control. If the control reads “LP FAIL” 

or “RP FAIL”, this indicates that the thermocouple has failed or 

has become disconnected from the control. “LP FAIL” indicates 

a problem with the left thermocouple probe, and “RP FAIL” 

indicates a problem with the right thermocouple probe.  

 

Thermocouple 

Check to be sure that the thermocouple is securely connected to 

the oven control. If the thermocouple is connected to the oven 

control, and the control indicates “LP FAIL” or “RP FAIL”, 

disconnect the thermocouple from the oven control and measure 

the resistance of the thermocouple. The left thermocouple 
should read approx. 21

. The right thermocouple should read 

approx. 11

. If these readings are not achieved, replace the 

thermocouple. If these readings are correct, proceed. 

 

Oven control 

If the thermocouple checks good, but the oven control display 

indicates that there is a thermocouple failure, replace the oven 

control. If the oven control indicates a temperature reading but 

the oven will not heat, proceed. 

 

Thermocouple 

WITH POWER ON AND THERMOCOUPLE ATTACHED TO 

THE OVEN CONTROL: Measure the DC millivolt output of the 

thermocouple. Refer to the thermocouple chart (located in the 

“Removal” section of the manual) for proper millivolt readings. If 

these readings are not achieved, replace thermocouple.  

 

Oven control 

If the thermocouple checks good, but there is no 120VAC output 

to the temperature regulation valve, replace the oven control. If 

there is 120VAC output to the temperature regulation valve, 

proceed. 

 

Temperature 

regulation valve. 

Check for 120VAC supplied to temperature regulation valve. If 

voltage is present, listen for valve to open and close. Also check 

for opens or shorts in the operating coil. Replace temperature 

regulation valve as needed. 

Intermittent heating 

Thermal/overload of 

main fan and burner 

blower motors 

The main fan motors and burner blower motors are equipped 

with internal thermal protection and will cease to operate if 

overheating occurs. As the motors overheat and then cool, this 

will cause the heating systems to cycle on and off intermittently. 

Improper ventilation or lack of preventive maintenance may 

cause this problem. Also, most of the problem listed under 

“Oven will not heat” can cause intermittent failure. 

Conveyor will not run 

Power supply 

Check for incoming voltage at line 1 to neutral. There should be 

a voltage reading of 120VAC. If not present, check circuit 

breakers. 

 

Power switch 

Check continuity between switch terminals. Replace switch as 

needed. 

 

Fuse, 10 Amp 

Check, replace if necessary. 

 

Fuse holder 

Check, replace if necessary. 

Summary of Contents for 1600-000-A

Page 1: ...EL 1600 000 A 1601 000 A WITH PUSH BUTTON CONTROLS Lincoln Foodservice Products LLC 1111 North Hadley Road Fort Wayne Indiana 46804 United States of America Phone 800 374 3004 U S Fax 888 790 8193 Int l Fax 260 436 0735 Technical Service Hot Line 800 678 9511 www lincolnfp com ...

Page 2: ...the Centrifugal Switch of the Main Fan Motor this switch closes when the Main Fan reaches approximately 1600 R P M through the 10 Amp Fuse to the Ignition Control the oven Temperature Control and the Burner Transformer As the Burner Blower reaches approximately 1600 R P M its internal Centrifugal Switch will close supplying 24 VAC to the Ignition Control The Ignition Control operates on both 24 VA...

Page 3: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 3 SCHEMATIC DIAGRAM 1600 000 A 1601 000 A SERIAL NUMBER L28563 AND ABOVE ...

Page 4: ...r main fan Check for opens shorts or grounds WITH POWER OFF turn fan blade to check for locked rotor Capacitor Check for shorts or grounds WARNING Capacitor has a stored charge discharge before testing No control box cooling Incoming power Check circuit breakers reset if required Check power plug to be sure it is firmly in receptacle Call power co if needed Power switch Check continuity between sw...

Page 5: ...er blower motor If voltage is not present trace wiring back to oven power relay If voltage is present and motor does not run replace burner blower motor WITH POWER OFF Check for locked rotor Burner transformer Check for 120 VAC to the primary of the 24 VAC burner transformer If voltage is not present trace wiring back to the burner fuse If voltage is present check for 24 VAC at the transformer sec...

Page 6: ... a flame or the ignition control will go into lockout The ignition control requires a minimum of 0 8 micro amps DC To check the flame sensing operation connect a digital multimeter capable of measuring DC micro amps between the GND burner terminal on ignition control and the ground wire NOTE This is a current measurement and the meter must be connected in series If these readings are not achieved ...

Page 7: ...orrect proceed Oven control If the thermocouple checks good but the oven control display indicates that there is a thermocouple failure replace the oven control If the oven control indicates a temperature reading but the oven will not heat proceed Thermocouple WITH POWER ON AND THERMOCOUPLE ATTACHED TO THE OVEN CONTROL Measure the DC millivolt output of the thermocouple Refer to the thermocouple c...

Page 8: ...WER OFF Check the motor windings as follows Grey to black 38Ω approx Grey to blue 38Ω approx Blue to black 75Ω approx If any of the above fails replace conveyor motor Capacitor conveyor motor Check for shorts or grounds Replace capacitor as needed WARNING Capacitor has a stored charge discharge before testing Switch conveyor reversing Check continuity between switch terminals Replace switch as nee...

Page 9: ...ve hot surface igniter and burner tube assy G Replace igniter assembly and reassemble in reverse order CAUTION USE CARE NOT TO DAMAGE NEW IGNITER NOTE Check all gas line fittings for leaks Make sure connector is seated properly CONVEYOR DRIVE MOTOR REPLACEMENT A Shut off power at main breaker B Remove conveyor C Remove control panel top and front cover D Disconnect wiring from motor and mark for r...

Page 10: ...F Disconnect pipe union G Disconnect wiring from control valve four 4 push on connectors make note of wire numbers and location for reinstallation H Remove gas piping from old valve and install on new one I Reassemble in reverse order and check system operation Set manifold pressure on gas valve Pressure should be 3 5 in W C Nat 10 in W C L P NOTE Check all gas line fittings for leaks check and ad...

Page 11: ...l box cover B Remove two 2 wires on primary side note color and location C Remove two 2 wires on secondary side note color and location D Remove two 2 screws from transformer base and replace assembly D Reinstall in reverse order and check system operation CONTROL TRANSFORMER REPLACEMENT See BURNER CONTROL TRANSFORMER above CAPACITOR MAIN FAN MOTOR 7 5 MFD 370V REPLACEMENT A Remove appropriate con...

Page 12: ...tion H Loosen lock nuts on cone Remove two mounting bolts and remove motor from back assy I Remove four 4 hex head screws from motor mount bracket Remove motor mount from motor and reinstall on new motor J Reassemble in reverse order NOTE 1 Make sure motor is centered in back housing 2 Verify correct location of fan blade and that it is not hitting fan shroud 3 Make sure all connectors are properl...

Page 13: ...et F Replace bearing and reassemble OVEN CONTROL REPLACEMENT A Shut off power at main breaker B Remove control box cover and front panel C Remove all wiring connections and mark for reassembly D Remove oven control by pulling control from the mounting pins Remove control from oven E Before installing new oven control set voltage jumper located at the bottom center of the oven control to the proper...

Page 14: ... Return U L L R S N 35950 below 370663 Baffle Air Return U L S N 35951 above U 370166 Baffle Air Return U R L L S N 35950 below 370662 Baffle Air Return U R S N 35951 above V 370168 Finger Housing T 1 T 3 B 2 B 4 S N 35950 below 370665 Finger Housing T 1 T 3 B 2 B 4 S N 35951 above 370169 Finger Housing T 2 T 4 B 1 B 3 S N 35950 below 370664 Finger Housing T 2 T 4 B 1 B 3 S N 35951 above W Columna...

Page 15: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 15 ...

Page 16: ...3 Gas Valve J 369556 By Pass Orifice Nat 370276 By Pass Orifice L P K 370251 Control Box Top R H L 353082 Ground Lug M 369537 Power Cord N 369124 Cooling Fan O 369531 Transformer 24 VAC Secondary P 370359 Reversing Switch Q 369192 Capacitor R 369012 Fuse Holder S 369013 Fuse 3 A 369014 Fuse 10 A T 369507 Thermostat Cooling Fan U 369431 Thermostat Control Box Hi Limit V 370352 Capacitor Conveyor Mo...

Page 17: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 17 ...

Page 18: ...on Control E 369531 Transformer 24 VAC F 369012 Fuse Holder G 369014 Fuse 10 A H 369192 Capacitor I 369124 Cooling Fan J 369556 By Pass Orifice Nat 370276 By Pass Orifice L P K 369263 Gas Valve L 369366 Burner Blower Motor M 369401 Air Shutter Assy N 369552 Hot Surface Igniter O 369755 Venturi Nat 369642 Venturi L P P 369398 Solenoid Valve Nat LP Q 369757 Main Orifice Nat 370279 Main Orifice L P R...

Page 19: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 19 ...

Page 20: ...ESCRIPTION A 369547 Wire Form Thermostat Bulb B 369725 Fan Clockwise Rotation C 369776 Fan Shroud D 369777 Stand Off E 369778 Rear Wall Assy F 369761 Motor Mount G 369726 Motor Main Fan 120V 60 Hz H 1627 Duct Cap I 369033 Motor Clamp J 370245 Rear Duct K 370246 Manifold Assy L 369724 Fan Counter Clockwise Rotation ...

Page 21: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 21 ...

Page 22: ...r A 369816 Conveyor Belting 370092 Belt 1 Foot Section B 369825 Retaining Ring C 369813 Conveyor Bearing Block D 369314 Roll Conveyor Notched E 369812 Conveyor Idler Shaft F 369160 Conveyor Pan Stop G 369814 Connecting Link H 369811 Conveyor Drive Shaft J 369161 Roller Chain Sprocket K 369806 Crumb Pan L 370050 Conveyor Frame M 370247 Drive Chain ...

Page 23: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 23 ...

Page 24: ...Low Profile 1600 Series Advantage Digital Service Manual Domestic 24 ...

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